pid type title authors mentors source_title published_date url doi isbn issn eissn pmf:12536 thesis "Uvjeti optimalnosti u teoriji upravljanja i primjene" "Posavec, Barbara" pmf:8303 dissertation "Shape derivative techniques in optimal design" "Kunštek, Petar" pmf:5617 thesis "Metoda nivo skupa u optimizaciji oblika" "Kunštek, Petar"