@article{DM_1992_4_1_a7,
     author = {A. V. Nazarok},
     title = {A~generalization of perfect {Mendelsohn} designs and some of its consequences},
     journal = {Diskretnaya Matematika},
     pages = {85--90},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1992_4_1_a7/}
}