@article{VMUMM_1982_3_a8,
     author = {A.N. Kanatnikov},
     title = {Two criteria for $P_h$-sequences},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {33--35},
     publisher = {mathdoc},
     number = {3},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1982_3_a8/}
}