@article{DM_1996_8_3_a0,
     author = {V. N. Sachkov},
     title = {Ideals and filters of partitions and cyclic classes, and invariance domains of permutations},
     journal = {Diskretnaya Matematika},
     pages = {3--21},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1996_8_3_a0/}
}