• Neki prilozi teoriji turnira 

    Some contributions to the theory of tournaments
    Petrović Vojislav (University of Novi Sad, Faculty of Science, 04-12-1987)
  • Specijalni elementi mreže i primene 

    Special elements in lattices and applications
    Tepavčević Andreja (University of Novi Sad, Faculty of Science, 29-06-1993)