@article{SEMR_2022_19_1_a13,
     author = {Ya. A. Kopylov},
     title = {Lambek invariants in a~p-semi-abelian category},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {332--341},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2022_19_1_a13/}
}