International legal sources on the occupied Crimean Peninsula:

UN Security Council

• Resolution 2202 (2015) Adopted by the Security Council at its 7384th meeting 17.02.2015 [on implementation of the “Package of Measures for the Implementation of the Minsk Agreements”].
  https://www.securitycouncilreport.org/atf/cf/%7B65BFCF9B-6D27-4E9C-8CD3-CF6E4FF96FF9%7D/s_res_2202.pdf

UN General Assembly

• Resolution 68/262 adopted by the UN General Assembly. Territorial Integrity of Ukraine. 27.03.2014.
  https://undocs.org/A/RES/68/262

• Resolution 71/205 adopted by the UN General Assembly. Situation of Human Rights in the Autonomous Republic of Crimea and the City of Sevastopol (Ukraine). 19.12.2016.
  https://undocs.org/A/RES/71/205

• Resolution 72/190 adopted by the UN General Assembly. Situation of Human Rights in the Autonomous Republic of Crimea and the City of Sevastopol (Ukraine). 19.12.2017.
  https://undocs.org/en/A/RES/72/190

• Resolution 73/194 adopted by the UN General Assembly. Problem of the Militarization of the Autonomous Republic of Crimea and the City of Sevastopol, Ukraine, as Well as Parts of the Black Sea and the Sea of Azov. 17.12.2018.
  https://undocs.org/en/A/RES/73/194

• Resolution 73/263 adopted by the UN General Assembly. Situation of Human Rights in the Autonomous Republic of Crimea and the City of Sevastopol (Ukraine). 22.12.2018.
  https://undocs.org/en/A/RES/73/263

• Resolution 74/17 adopted by the UN General Assembly. Problem of the Militarization of the Autonomous Republic of Crimea and the City of Sevastopol, Ukraine, as Well as Parts of the Black Sea and the Sea of Azov. 9.12.2019.
  https://undocs.org/en/A/RES/74/17

• Resolution 74/168 adopted by the UN General Assembly. Situation of Human Rights in the Autonomous Republic of Crimea and the City of Sevastopol (Ukraine). 18.12.2019.
  https://undocs.org/en/A/RES/74/168

• Resolution 75/29 adopted by the UN General Assembly. Problem of the Militarization of the Autonomous Republic of Crimea and the City of Sevastopol, Ukraine, as Well as Parts of the Black Sea and the Sea of Azov. 7.12.2020.
  https://undocs.org/en/A/RES/75/29

• Resolution 75/192 adopted by the UN General Assembly. Situation of Human Rights in the Autonomous Republic of Crimea and the City of Sevastopol (Ukraine). 16.12.2020.
  https://undocs.org/en/A/RES/75/192

UN Conventional Bodies

• UN Human Rights Committee. List of Issues in Relation to the Eighth Periodic Report of the Russian Federation. CCPR/C/RUS/Q/8. 14.08.2020.
  https://tbinternet.ohchr.org/_layouts/15/treatybodyexternal/Download.aspx?symbolno=CCPR%2FC%2FRUS%2FQ%2F8&Lang=en

• UN Human Rights Committee. Concluding Observations on the Seventh Periodic Report of the Russian Federation. CCPR/C/RUS/CO/7. 28.04.2015.
  https://undocs.org/en/CCPR/C/RUS/CO/7

International Court of Justice

• International Court of Justice, Order on Request for the Indication of Provisional Measures. 19.04.2017. General List No. 166. Application of the International Convention for the Suppression of the Financing of Terrorism and of the International Convention on the Elimination of All Forms of Racial Discrimination (Ukraine v. Russian Federation).
  https://www.icj-cij.org/public/files/case-related/166/166-20170419-ORD-01-00-EN.pdf

• International Court of Justice, Judgment on Preliminary Objections. 8.11.2019. General List No. 166. Application of the International Convention for the Suppression of the Financing of Terrorism and of the International Convention on the Elimination of All Forms of Racial Discrimination (Ukraine v. Russian Federation).
  https://www.icj-cij.org/public/files/case-related/166/166-20191108-JUD-01-00-EN.pdf

International Criminal Court

• Office of the Prosecutor of the International Criminal Court. Report on Preliminary Examination Activities (2020).14.12.2020.
  https://www.icc-cpi.int/itemsDocuments/2020-PE/2020-pe-report-eng.pdf

European Court on Human Rights

• Ukraine v. Russia (Re Crimea). (Applications nos. 20958/14 and 38334/18). ECtHR Grand Chamber Decision. 16.12.2020.
  http://hudoc.echr.coe.int/eng?i=001-207622

International Tribunal for the Law of the Sea

• Case Concerning the Detention of Three Ukrainian Naval Vessels (Ukraine v. Russian Federation), Provisional Measures. International Tribunal fro the Law of the Sea. List of Cases: No. 26. Order 25.05.2019.
  https://www.itlos.org/en/main/cases/list-of-cases/case-concerning-the-detention-of-three-ukrainian-naval-vessels-ukraine-v-russian-federation-provisional-measures/

Arbitrary proceedings in the Permanent Court of Justice (interstate claims)

• Award Concerning the Preliminary Objections of the Russian Federation, 21.02.2020. PCA Case No. 2017-06. Dispute Concerning Coastal State Rights in the Black Sea, Sea of Azov, and Kerch Strait (Ukraine v. the Russian Federation).
  https://pcacases.com/web/sendAttach/9272

• Dispute Concerning the Detention of Ukrainian Naval Vessels and Servicemen (Ukraine v. the Russian Federation) PCA Case No. 2019-28. (no available decisions except procedural).
  https://pca-cpa.org/en/cases/229/

Arbitrary proceedings in the Permanent Court of Justice (private claims)

• Aeroport Belbek LLC and Mr. Igor Valerievich Kolomoisky v. The Russian Federation No. 2015-07 (no available decisions).
  https://pca-cpa.org/en/cases/123/

• JSC CB PrivatBank v. The Russian Federation No. 2015-21 (no available decisions).
  https://pca-cpa.org/en/cases/130/

• LLC Lugzor, LLC Libset, LLC Ukrinterinvest, PJSC DniproAzot, LLC Aberon Ltd v. The Russian Federation No. 2015-29 (no available decisions).
  https://pca-cpa.org/en/cases/124/

• PJSC Ukrnafta v. The Russian Federation No. 2015-34 (no available decisions).
  https://pca-cpa.org/en/cases/121/

• Stabil LLC, Rubenor LLC, Rustel LLC, Novel-Estate LLC, PII Kirovograd-Nafta LLC, Crimea-Petrol LLC, Pirsan LLC, Trade-Trust LLC, Elefteria LLC, VKF Satek LLC, Stemv Group LLC v. The Russian Federation No. 2015-35 (no available decisions).
  https://pca-cpa.org/en/cases/122/

• Everest Estate LLC et al. v. The Russian Federation No. 2015-36 (no available decisions).
  https://pca-cpa.org/en/cases/133/

• NJSC Naftogaz of Ukraine (Ukraine) et al. v. the Russian Federation No. 2017-16 (no available decisions).
  https://pca-cpa.org/en/cases/151/

OSCE Parliamentary Assembly

• Resolution on Clear, Gross and Uncorrected Violations of Helsinki Principles by the Russian Federation. Parliamentary Assembly of OSCE, 23rd Annual Session 2.07.2014.
  https://www.oscepa.org/documents/annual-sessions/2014-baku/declaration-2/2540-2014-baku-declaration-eng/file

• Resolution on the Continuation of Clear, Gross and Uncorrected Violations of OSCE Commitments and International Norms by the Russian Federation. Parliamentary Assembly of OSCE, 24th Annual Session 5-9.07.2015.
  https://www.oscepa.org/documents/annual-sessions/2015-helsinki/declaration-3/2977-2015-helsinki-declaration-eng/file

• Resolution on Violations of Human Rights and Fundamental Freedoms in the Autonomous Republic of Crimea and the City of Sevastopol. Parliamentary Assembly of OSCE, 25th Annual Session 1-5.07.2016.
  https://www.oscepa.org/documents/annual-sessions/2016-tbilisi/declaration-24/3371-tbilisi-declaration-eng/file

• Resolution on Restoration of the Sovereignty and Territorial Integrity of Ukraine. Parliamentary Assembly of OSCE, 26th Annual Session 5-9.07.2017.
  https://www.oscepa.org/documents/annual-sessions/2017-minsk/declaration-25/3555-declaration-minsk-eng/file

• Resolution on Ongoing Violations of Human Rights and Fundamental Freedoms in the Autonomous Republic of Crimea and the City of Sevastopol (Ukraine). Parliamentary Assembly of OSCE, 28th Annual Session 7-11.07.2018.
  https://www.oscepa.org/documents/annual-sessions/2018-berlin/declaration-26/3742-berlin-declaration-eng/file

• Resolution on the Militarization by the Russian Federation of the Temporarily Occupied Autonomous Republic of Crimea and the City of Sevastopol, Ukraine, the Black Sea and the Sea of Azov. Parliamentary Assembly of OSCE, 28th Annual Session 4-8.07.2019.
  https://www.oscepa.org/documents/annual-sessions/2019-luxembourg/3882-luxembourg-declaration-eng/file

Parliamentary Assembly of Council of Europe

• Resolution of Parliamentary Assembly of CoE 1988 (2014). Recent developments in Ukraine: threats to the functioning of democratic institutions. 9.04.2014.
  https://assembly.coe.int/nw/xml/XRef/Xref-XML2HTML-en.asp?fileid=20873&lang=en

• Resolution of Parliamentary Assembly of CoE 2028 (2015). The humanitarian situation of Ukrainian refugees and displaced persons. 27.01.2015.
  http://assembly.coe.int/nw/xml/xref/xref-xml2html-en.asp?fileid=21480&lang=en

• Resolution of Parliamentary Assembly of CoE 2067 (2015). Missing persons during the conflict in Ukraine. 25.06.2015.
  http://assembly.coe.int/nw/xml/xref/xref-xml2html-en.asp?fileid=21970&lang=en

• Resolution of Parliamentary Assembly of CoE 2112 (2016). The humanitarian concerns with regard to people captured during the war in Ukraine. 21.04.2016.
  https://assembly.coe.int/nw/xml/XRef/Xref-XML2HTML-en.asp?fileid=22750&lang=en

• Resolution of Parliamentary Assembly of CoE 2132 (2016). Political consequences of the Russian aggression in Ukraine. 12.10.2016.
  https://assembly.coe.int/nw/xml/XRef/Xref-XML2HTML-en.asp?fileid=23166&lang=en

• Resolution of Parliamentary Assembly of CoE 2133 (2016). Legal remedies for human rights violations on the Ukrainian territories outside the control of the Ukrainian authorities. 12.10.2016.
  http://assembly.coe.int/nw/xml/XRef/Xref-XML2HTML-en.asp?fileid=23167

• Resolution of Parliamentary Assembly of CoE 2145 (2017). The functioning of democratic institutions in Ukraine. 25.01.2017.
  https://assembly.coe.int/nw/xml/XRef/Xref-XML2HTML-en.asp?fileid=23453&lang=en

• Resolution of Parliamentary Assembly of CoE 2198 (2018). Humanitarian Consequences of the War in Ukraine. 23.01.2018.
  https://assembly.coe.int/nw/xml/XRef/Xref-XML2HTML-en.asp?fileid=24432&lang=en

• Resolution of Parliamentary Assembly of CoE 2231 (2018). Ukrainian citizens detained as political prisoners by the Russian Federation. 28.06.2018.
  http://assembly.coe.int/nw/xml/XRef/Xref-XML2HTML-EN.asp?fileid=24994&lang=en

European Parliament

• Resolution of European Parliament 2014/2841(RSP). On the situation in Ukraine and the state of play of EU-Russia relations. 18.09.2014.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2014/2841(RSP)

• Resolution of European Parliament 2014/2965(RSP). On the situation in Ukraine. 15.01.2015.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2014/2965(RSP)

• Resolution of European Parliament 2016/2556(RSP). On the human rights situation in Crimea, in particular of the Crimean Tatars. 4.02.2016.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2016/2556(RSP)

• Resolution of European Parliament 2016/2692(RSP). On the Crimean Tatars. 12.05.2016.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2016/2692(RSP)

• Resolution of European Parliament 2017/2596(RSP) On the Ukrainian prisoners in Russia and the situation in Crimea. 16.03.2017.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2017/2596(RSP)

• Resolution of European Parliament 2017/2869(RSP). On the cases of Crimean Tatar leaders Akhtem Chiygoz, Ilmi Umerov and the journalist Mykola Semena. 5.10.2017.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2017/2869(RSP)

• Resolution of European Parliament 2018/2754(RSP). On Russia, notably the case of Ukrainian political prisoner Oleg Sentsov. 14.06.2018.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2018/2754(RSP)

• Resolution of European Parliament (2018/2870(RSP)) On the Situation in the Sea of Azov. 24.10.2018.
  https://www.europarl.europa.eu/doceo/document/RC-8-2018-0493_EN.html?redirect

• Resolution of European Parliament 2019/2734(RSP) On Russia, notably the situation of environmental activists and Ukrainian political prisoners. 18.07.2019.
  https://oeil.secure.europarl.europa.eu/oeil/popups/ficheprocedure.do?lang=en&reference=2019/2734(RSP)

• Resolution of European Parliament 2019/2202(INI). On the implementation of the EU Association Agreement with Ukraine. 11.02.2021.
  https://www.europarl.europa.eu/doceo/document/TA-9-2021-0050_EN.html