@article{YJOR_1997_7_1_a3,
     author = {Branimir \v{S}e\v{s}elja and Andreja Tepav\v{c}evi\'c},
     title = {A {Note} on {Fuzzy} {Groups}},
     journal = {Yugoslav journal of operations research},
     pages = {49 },
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1997},
     zbl = {0886.20041},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_1997_7_1_a3/}
}