@article{FPM_2012_17_4_a4,
     author = {M. Vukovi\'c and E. Ili\'c-Georgijevi\'c},
     title = {Paragraded rings and their ideals},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {83--93},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2012_17_4_a4/}
}