@article{SVMO_2022_24_1_a6,
     author = {A. V. Litavrin},
     title = {Endomorphisms and anti-endomorphisms of some finite groupoids},
     journal = {\v{Z}urnal Srednevol\v{z}skogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {76--95},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SVMO_2022_24_1_a6/}
}