@article{CHEB_2018_19_1_a2,
     author = {D. A. Bredikhin},
     title = {On bases of identities for varieties of groupoids of relations},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {26--34},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2018_19_1_a2/}
}