@article{NSJOM_1981_11_Nonea_21,
     author = {U\v{s}an 

 Janez and \v{S}e\v{s}elja Branimir},
     title = {Transitive n-ary relations and characterizations of generalized 

 equivalences},
     journal = {Novi Sad Journal of Mathematics},
     pages = {231-245},
     publisher = {mathdoc},
     volume = {11},
     year = {1981},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1981_11_Nonea_21/}
}