@article{VMUMM_2007_5_a12,
     author = {Yu. P. Razmyslov and A. O. Kachkovskii},
     title = {$W${-Commensurability}},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {69--70},
     publisher = {mathdoc},
     number = {5},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2007_5_a12/}
}