@article{NSJOM_1982_12_Nonea_33,
     author = {\v{S}e\v{s}elja Branimir},
     title = {Fuzzy congruence 

 relations and constructions of algebras},
     journal = {Novi Sad Journal of Mathematics},
     pages = {447-455},
     publisher = {mathdoc},
     volume = {12},
     year = {1982},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1982_12_Nonea_33/}
}