In front of the five-member committee (Prof. Vedran Bilas, Prof. Zdenko Kovačić, Prof. Gordan Sisul, Prof. Stjepan Bogdan, and Prof. Drago Žagar), our LARICS PhD student Damir Arbula, M.Sc. (Technical Faculty University of Rijeka) successfully presented and defended the topic of his doctoral dissertation entitled „Distributed algorithm for node localization in anchor free wireless sensor network”. The Committee agreed upon expected scientific contributions and the same approval is expected to come from the Faculty of EE&C Council and the Technical Committee of the University of Zagreb.