@article{DVMG_2013_13_1_a9,
     author = {A. A. Stepanova and D. O. Ptahov},
     title = {Congruence lattice of {S-acts}},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {107--115},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2013_13_1_a9/}
}