DEMIRDELEN O., ODMAN M.T., “One of The Problem Caused By Global Warming: The Legal Status of Climate Change”, The Journal of Social Science, 4/13, 470–497, August 2017.
DEMIRDELEN O., ODMAN, M.T., “One of The Problem Caused By Global Warming: The Legal Status of Climate Change”, II. International Symposium on Social Sciences, 18-20 May 2017, Alanya Alaaddin Keykubat University.
DEMIRDELEN O., “Comparison of Competition Law and Unfair Competition Law”, International Social Sciences and Education Conference, 19-21 October 2017, Antalya, Turkey.
DEMIRDELEN O. ”Liability of Employee in Agency without Authority”, International Social Sciences and Education Conference, 19-21 October 2017, Antalya, Turkey.
DEMIRDELEN O., “Contradiction to Mandatory Rules” International Social Sciences and Education Conference, 19-21 October 2017, Antalya, Turkey.
DEMIRDELEN O., “Combating Discrimination: Ensuring Equal Treatment in Recruitment and Occupational Perspectives”, 4. International Symposium on Law, 3-4-5 May 2018, Alanya Alaaddin Keykubat University.
UNAL A., DEMIRDELEN O., “The Overview to Marriage and Divorce from Roman Law to Present and The Termination States of Non- Marital Cohabitants Forms”, 8. International Congress on Current Debates in Social Science (CUDES 2018), September 28-30, 2018, Istanbul, Turkey.
UNAL A., DEMIRDELEN O., The Overview of Marriage and Divorce from Roman Law to Present and The Termination States of Non Marital Cohabitants Forms, Contemporary Issues In International Relations Politics& Law, IJOPEC Publication, 2018/29, London.
Meeting Students with Practice and Community Contribution Project bu Law Clinics Application and Research Center, BAP, 2019-2021.
United Nations/Turkey/APSCO Conference on Space Law and Policy, 23-26 September 2019, Istanbul/TURKEY (invited participant).
TUBITAK BILGEM, 2. National Blockchain Workshop, 25-26 September 2019, Istanbul/TURKEY (invited participant).
ADIGUZEL B., DEMIRDELEN O., “The Status of Digital Ads Affecting Users and The Place in Conflict Laws”, IConSE2019, 26-29 October 2019, Antalya, Turkey.
ADIGUZEL B., DEMIRDELEN O., “Cooperatives Bodies and Invalidity of Bodies Decisions”, EÜHFD, 14/2, October 2019, 210-263.
DEMIRDELEN O., Authorized Law on the Basis of Citizenship for Stateless and Refugees, Adalet Publishing House, 2020, Ankara.
DEMIRDELEN O., SAHIN E. ve CEYHAN S., The Effects of the Pandemic Process within the Scope of KVKK: Registration Period for Data Controllers Registry System, Bilge Publishing House, 2020, Ankara.
DEMIRDELEN O., KANDEMİR S., “A New Problem Brought by Advanced Technology: The Relationship of Artificial Intelligence with Law”, Artificial Intelligence and Big Data Technologies and Approaches, Artificial Intelligence and Big Data Book Series 1, Editors: Prof.Dr. Şeref SAĞIROĞLU&Dr. Mustafa Umut DEMİREZEN, Nobel, 2020, Ankara.
DEMIRDELEN O., ADIGUZEL B., “Legal Problems Encountered on Digital Platforms: Example of Google Decision”, I. Turkey-European Union Relations Conference with European Union Law and Its Legal Dimensions, Jean Monnet Chair “Legal Issues in Turkey - European Union Relations”, Ankara Üniversitesi Hukuk Fakültesi Avrupa Birliği Hukuku Anabilim Dalı ve Avrupa Toplulukları Araştırma ve Uygulama Merkezi (ATAUM), 2020.
DEMIRDELEN O., ADIGUZEL B., “The Classification of New Generation Commerce Respect to Artificial Intelligence Applications”, ICAILIS2021: International Conference on Artificial Intelligence and Law in in Intelligent Systems, 21-22 2021, Vienna/Austria.
CETINER O., DEMIRDELEN O. ve DEMIRDELEN T., “Climate Change as a Competition Area in Global Leadership: An Examination Of China’s Environmental Policy”, Invitation for a book chapter in Handbook of Climate Change Mitigation and Adaptation, Springer Science+Business Media, LLC, part of Springer Nature 2021.
DEMIRDELEN O., SAHIN E. and CEYHAN S., Applications in the Field of KVKK, Bilge Publishing House, 2nd Edition, 2021, Ankara.
DEMIRDELEN O., Law Clinics, From Legal Clinics to Community Contribution Project, Çağ'ın Dergisi, January 2020, Yenice/MERSİN
CEYHAN S., DEMIRDELEN O., “The Impact of the Climate Crisis on Children’s Rights”, International Multi-Disciplinary Children's Studies Congress, 18-19 July 2021, Ankara, Turkey (held online).
DEMIRDELEN O., SAHIN E. and CEYHAN S., “Protection of Personal Data in the Maritime Sector”, Prof. Dr. A Tribute to Saim Üstündağ, Justice, 2021, Ankara.
CEYHAN S., DEMIRDELEN O., “Important Protection Regarding Personal Data: Children Against Digital Threats”, II. International Information and Technology Law Symposium, 10-20 November 2022, Istanbul.
KANDEMİR S., DEMIRDELEN O., “Supervisory and Legal Transformation in European Union Banking”, Tarsus University Faculty of Applied Sciences Journal, 2/2, 2022, 91-119.
CEYHAN S., DEMIRDELEN O., “Important Protection Regarding Personal Data: Children Against Digital Threats”, II. International Information and Technology Law Symposium, 10-20 November 2022, Istanbul.
DEMIRDELEN O., “Understanding the Place of Invasive Alien Species in Climate Law in Ecological Balance”, Effects of Marine Invasive Alien Species, Marine Invasive Alien Species (MarIAS) Project, 21-23 November 2022, Antalya.
DEMİRDELEN O., “Multimodal Transport Under the Montreal Convention”, 20th Anniversary of The Ratification of The Montreal Convention 1999, 4-5 November 2023, Ankara.
DEMİRDELEN O., “Sustainable Accessibility: Barrier-Free Life", Multidisciplinary Perspective on Disability and Space, DAKAM Publications, 2023, Istanbul.
Competition Authority, "Online Advertising Sector Review Workshop", Ankara Bilkent Hotel, 20 December 2023 (invited participant).
Turkish National Agency, "Erasmus+ Central Projects Meeting", Ankara, 23 January 2024 (participation on behalf of the University).
DEMİRDELEN O., Law Applicable to Mobile Application Agreements within the Scope of Consumer Agreement, Oniki Levha Publishing, 1st Edition, January 2024, Istanbul.
YAVUZDEĞER A., ENESBOĞA B., TÜMAY ATEŞ K., DEMİRDELEN Ö., YÜKSEL M.,"Assening the Carbon Footprint of Plastic Bottle Blow Mold Based on Product Life Cycle for Managing the Mold Industry's Carbon Emission", Sustainability, 16, 2149 , 1-18, 2024 (SSCI Q2).