@article{SEMR_2021_18_2_a10,
     author = {E. E. Skurikhin and A. A. Stepanova and A. G. Sukhonos},
     title = {Extensions of the category $S-Act$},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {1332--1357},
     year = {2021},
     volume = {18},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2021_18_2_a10/}
}