• European internal security interests and Brexit. Legal and operational aspects of the post–Brexit cooperation modelLoik, RamonRomanian journal of European affairs2020 / p. 5-17 http://rjea.ier.gov.ro/en/issues/rjea-vol-20-no-2-december-2020/
• European Union strategy and capabilities to Counter Hostile Influence OperationsLoik, Ramon; Madeira, VictorThe Russian Federation in global knowledge warfare : influence operations in Europe and its neighbourhood2021 / p. 247–264 https://doi.org/10.1007/978-3-030-73955-3_13 https://www.ester.ee/record=b5434182*est
• General frameworksEvas, Tatjana; Hoffmann, Thomas; Joamets, Kristi; Kerikmäe, Tanel; Loik, Ramon; Nyman-Metcalf, Katrin Merike; Popov, Aleksandr; Särav, SandraThe law of the Baltic States2017 / p. 3-40 http://www.ester.ee/record=b4673554*est https://doi.org/10.1007/978-3-319-54478-6_1
• Hoonete turvaklassid ja optimaalsed turvalahendused: Arendusuuring RKAS metoodika väljatöötamiseksLoik, Ramon; Savimaa, Raul; Kutsar, Tõnu; Juurvee, Ivo; Tabur, Lauri; Sinisaar, Andres2020 https://rkaskonverents.ee/wp-content/uploads/2020/11/Hoonete_turvaklassid_ja_Optimaalsed_turvalahendused_1_Ramon_Loik.pdf
• Internal security cooperation under functional expectations : initial law enforcement Europeanization - case of Finland and EstoniaLoik, Ramon; Hämäläinen, Erkki; Veebel, ViljarRomanian Journal of European Affairs2016 / p. 5 - 23 http://rjea.ier.gov.ro/wp-content/uploads/revista/RJEA_2015_vol16_no1_site.pdf https://www.scopus.com/sourceid/19700170038 https://www.scopus.com/record/display.uri?eid=2-s2.0-84960481009&origin=resultslist&sort=plf-f&src=s&sid=9e20c12559a378c4f5ae87ccea863399&sot=b&sdt=b&s=TITLE%28%22Internal+security+cooperation+under+functional+expectations%3A+Initial+law+enforcement+Europeanization+-+Case+of+Finland+and+Estonia%22%29&sl=139&sessionSearchId=9e20c12559a378c4f5ae87ccea863399&relpos=0
• Julgeolekuohud Balti riikide merealuste ühendustega seotud kriitilisele taristule: Läänemeri hübriidsõja tulipunktisMuuga, Emilia; Loik, Ramon; Kaup, Georg-Henri; Savimaa, Raul; Koort, Erkki2025 https://doi.org/10.15158/sra3-5651 https://digiriiul.sisekaitse.ee/handle/123456789/3579 https://www.ester.ee/record=b5731083*est
• Merealune kriitiline taristu hübriidse vaenutegevuse sihtmärgina : Läänemere kaasused ja järeldused Eesti julgeoleku vaatestMuuga, Emilia; Loik, Ramon; Kaup, Georg-Henri; Savimaa, Raul; Koort, ErkkiTurvalisuskompass : turvalisuse ja julgeoleku teadusajakiri2025 / lk. 143-170 https://doi.org/10.15158/yyy1-2a04 https://digiriiul.sisekaitse.ee/handle/123456789/3603
• Security Threats to the Undersea Connections Related Critical Infrastructure of the Baltic States: Baltic Sea in the Focus of Hybrid WarfareMuuga, Emilia; Loik, Ramon; Kaup, Georg-Henri; Savimaa, Raul; Koort, Erkki2025 https://www.ester.ee/record=b5738415*est