@article{AL_2004_43_1_a3,
     author = {V. L. Selivanov},
     title = {Boolean {Hierarchies} of {Partitions} over {a~Reducible} {Base}},
     journal = {Algebra i logika},
     pages = {77--109},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2004_43_1_a3/}
}