@article{SEMR_2021_18_2_a9,
     author = {I. M. Isaev},
     title = {On the join of {Cross} varieties of algebras},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {1299--1306},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2021_18_2_a9/}
}