@article{NSJOM_1992_22_1a_8,
     author = {\v{S}e\v{s}elja Branimir and Tepav\v{c}evi\'c Andreja},
     title = {On cep and semimodularity 

 in the lattice of weak congruences},
     journal = {Novi Sad Journal of Mathematics},
     pages = {95-106},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1992},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1992_22_1a_8/}
}