@article{DM_1991_3_4_a11,
     author = {S. S. Marchenkov},
     title = {On the degree of uniform id-decomposition of closed classes in~$P_k$},
     journal = {Diskretnaya Matematika},
     pages = {128--142},
     publisher = {mathdoc},
     volume = {3},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1991_3_4_a11/}
}