pid type title authors mentors source_title published_date url doi isbn issn eissn pmf:12744 thesis "Markovljevi modeli i primjene" "Jozinović, Leonarda" pmf:10531 dissertation "Ergodicity of diffusion processes" "Lazić, Petra" pmf:5631 thesis "Brownovo gibanje i Hausdorffova dimenzija" "Lazić, Petra"