@article{IM2_2020_84_2_a3,
     author = {I. B. Kozhukhov and A. M. Pryanichnikov and A. R. Simakova},
     title = {Conditions of~modularity of~the congruence~lattice of~an~act over a~rectangular band},
     journal = {Izvestiya. Mathematics },
     pages = {291--323},
     publisher = {mathdoc},
     volume = {84},
     number = {2},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2020_84_2_a3/}
}