@article{ISU_2011_11_3_a6,
     author = {A. V. Reshetnikov},
     title = {On congruences of partial $n$-ary groupoids},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {46--51},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2011_11_3_a6/}
}