@article{DM_2006_18_2_a11,
     author = {Yu. A. Elovikova},
     title = {Properties of the lattice of all multiply $\Omega$-canonical formations},
     journal = {Diskretnaya Matematika},
     pages = {146--158},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2006_18_2_a11/}
}