Book chapters:
1. Gumzej, Nina
Regulation of the ICT Market // Croatia: International Encyclopaedia of Laws: Cyber Law / Dumortier, Jos (ed.).
Alphen aan den Rijn, Nizozemska: Kluwer Law International B.V., 2020. pp. 37-88
2. Gumzej, Nina
Privacy Protection // Croatia: International Encyclopaedia of Laws: Cyber Law / Dumortier, Jos (ed.).
Alphen aan den Rijn, Nizozemska: Kluwer Law International B.V., 2020. pp. 165-201
3. Dragičević Dražen; Gumzej, Nina.
Privacy and Personal Data Protection in the Digital Environment // Legal Informatics and Information Technologies Law) / Dragičević, Dražen (ed.). Zagreb : Narodne novine, 2015. pp. 101-164.
Updated text (2018.) for students is available at: https://www.pravo.unizg.hr/PI/predmet/pit/dokumenti
Articles:
1. Gumzej, Nina. DPA powers toward effective and transparent GDPR enforcement: the case of Croatia// Juridical Tribune, 13 (2023) 2 ; pp. 192-223. DOI: 10.24818/TBJ/2023/13/2.03. https://www.tribunajuridica.eu/arhiva/An13v2/3.%20Nina%20Gumzej.pdf
2. Gumzej, Nina. ‘The Right to Be Forgotten’ and the Sui Generis Controller in the Context of CJEU Jurisprudence and the GDPR. // Croatian yearbook of European law & policy. 17 (2021); 1-28 https://cyelp.com/index.php/cyelp/article/view/447/246
3. Gumzej, Nina. Applicability of e-Privacy Directive to national data retention measures following invalidation of the Data Retention Directive. // Juridical Tribune, 11 (2021), 3; 430-451 doi:10.24818/TBJ/2021/11/3.02. http://www.tribunajuridica.eu/arhiva/An11v3/2.%20Nina%20Gumzej.pdf
4. Gumzej, Nina; Dragičević, Dražen. Video Surveillance in the Workplace under the Croatian Act on Implementation of the General Data Protection Regulation. // Collected Papers of Zagreb Law Faculty. 69 (2019) , 3; 327-346 (journal article). 
5. Gumzej, Nina. EU Right to be Forgotten and Global Internet: Enforcement of Delinking Requests // Media, culture and public relations. 7 (2016) , 2; 171-191. 
6. Dragičević, Dražen; Gumzej, Nina. Mandatory Data Retention and Privacy. // Collected Papers of Zagreb Law Faculty. 64 (2014) , 1; 39-79. 
7. Gumzej, Nina. Selected Aspects of Proposed New EU General Data Protection Legal Framework and the Croatian Perspective. // Juridical Tribune. 3 (2013) , 2; 178-201.
8. Dragičević, Dražen; Gumzej, Nina. Liability of Intermediaries for Breach of Copyright and Related Rights on the Internet. // Collected Papers of Zagreb Law Faculty. 62 (2012) , 4; 1003-1042.
Scientific conference papers with international peer-review
1. Gumzej, Nina. Technical Solutions Supporting the Online RTBF in the CJEU and ECHR Jurisprudence," 2023 46th MIPRO ICT and Electronics Convention (MIPRO), Opatija, Croatia, 2023, pp. 1467-1473, doi: 10.23919/MIPRO57284.2023.10159696. Also available at: http://www.mipro.hr/Dokumentim/Zbornici/tabid/196/language/hr-HR/Default.aspx (pp. 1672-1678).
2. Gumzej, Nina; Protrka Nikola. // Evaluation of Digital Evidence in Criminal Proceedings in Croatia with a Focus on Preservation Requirements and Role of Standard Operative Procedures. 44th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO), 1 (2021); 1737-1742 doi:10.23919/MIPRO52101.2021.9597136. https://www.bib.irb.hr/1149548/download/1149548.digital_evidence_mipro2021.pdf
3. Gumzej, Nina. Law and technology in data processing: Risk-based approach in EU data protection law and implementation challenges in Croatia // 2017 40th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO).Piscataway, NJ USA : IEEE, 2017.
4. Gumzej, Nina; Dragičević Dražen. Convergence in communications and E-Privacy regulatory challenges, with a local perspective // Proceedings of the 13th International Conference on Telecommunications – ConTEL 2015 / Thomas Plank / IEEE, editor(s). Graz, Austria : Graz University of Technology Institute of Microwave and Photonic Engineering / IEEE, 2015. 1-8.
5. Gumzej, Nina; Dragičević, Dražen. Cloud Computing Data Protection Aspects under Croatian and European Union Law // 22nd International Conference on Software, Telecommunications and Computer Networks (Softcom 2014), 17-19.9.2014, Split (IEEE Catalog Number: CFP187A-USB, ISBN 978-953-290-051-4). (lecture,international peer-review,published,scientific).
6. Gumzej, Nina. Challenges of the Digital Environment for Personal Data Privacy and Security // 21st International Scientific Conference Society and Technology 2014, Opatija, 28.-30.6.2014., Book of Manuscripts. 706-730. 
7. Dragičević, Dražen; Gumzej, Nina. Citizens' fundamental rights in the context of legal protection of intellectual property on the Internet // 20th International Scientific Conference Society and Technology 2013, Opatija, 28.-30.6.2013., Book of Manuscripts. 381-402.
8. Gumzej, Nina. Evolving Challenges and Legal Safeguards in Processing User Data in Electronic Communications // Proceedings of the 12th International Conference on Telecommunications – ConTEL 2013. 271-282 .
9. Gumzej, Nina; Grgić, Snježana. ePrivacy Rules and Data Processing in Users' Terminal Equipment: a Croatian Experience // Proceedings of the 36th International Convention on Information & Communication Technology Electronics & Microelectronics (MIPRO).
10. Gumzej, Nina. The Council of Europe and the right to personal data protection: embracing postmodernity // Conference of the International Journal of Arts & Sciences Proceedings. 2013.
11. Gumzej, Nina. Protection of Data Relating to EU Consumers in the IoT Age // Software, Telecommunications and Computer Networks (SoftCOM), 2012 20th International Conference Proceedings (SoftCOM 2012).
Dissertations
1. Gumzej, Nina. Data protection in electronic communications / doctoral thesis. Zagreb : Pravni fakultet u Zagrebu, 05.9. 2011, 493 pages. Mentor: Dragičević, Dražen.
Other papers
1. Gumzej, Nina. General Data Protection Regulation, 2017.
2. Gumzej, Nina. European Data Protection Framework: Current Themes, 2016. 
3. Gumzej, Nina (in capacity of national legal expert for the study)
Time.lex, Spark Legal Network (Gumzej, Nina for Spark as national legal expert); European Commission, Directorate-General of Communications Networks, Content & Technology.
COUNTRY REPORT CROATIA, "ePrivacy Directive: assessment of transposition, effectiveness and compatibility with proposed Data Protection Regulation (SMART 2013/0071), Final Report - Annex, 2015. (study).
4. (Spark Legal Network) van der Sloot, Bart; Paun, Mara; Leenes, Ronald; McNally, Peter; Ypma, Patricia (Gumzej Nina for Spark Legal Network, and other national experts); European Commission - corporate author. Croatia, in: Anti-Doping & Data Protection - An evaluation of the anti-doping laws and practices in the EU Member States in light of the General Data Protection Regulation ; Annex II - Fact Sheets Anti-Doping and Data Protection, 2017. doi:10.2766/042641
5. Time.lex and Spark Legal Network (Gumzej, Nina for Spark Legal Network).
COUNTRY REPORT CROATIA, for the study "Standard terms and performance criteria in service level agreements for cloud computing services" (SMART 2013/0039), in: Time.lex and Spark Ltd, "Standard terms and performance criteria in service level agreements for cloud computing services", D2. First Interim Report, Annex 2, 2014. (study).
