@misc{AL_2009_48_5_a6,
     title = {Sessions of the seminar {``Algebra} {i~Logika''}},
     journal = {Algebra i logika},
     pages = {675--676},
     publisher = {mathdoc},
     volume = {48},
     number = {5},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2009_48_5_a6/}
}