@article{NSJOM_1998_28_3a_9,
     author = {Lazarevi\'c Vera and \v{S}e\v{s}elja Branimir and Tepav\v{c}evi\'c Andreja},
     title = {Bisemilattice-valued fuzzy sets},
     journal = {Novi Sad Journal of Mathematics},
     pages = {105-114},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1998},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1998_28_3a_9/}
}