Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MI_1970__5_2_189015, author = {{\CYRA}.{\CYRS}. {\CYRB}{\cyra}{\cyrs}{\cyra}{\cyrr}{\cyra}{\cyrb}}, title = {{\CYRI}{\cyrz}{\cyro}{\cyrt}{\cyro}{\cyrp}{\cyri}{\cyrya} {WIP-} {\cyrl}{\cyru}{\cyrp}}, journal = {Matemati\v{c}eskie issledovani\^a}, pages = {3--12}, publisher = {mathdoc}, volume = {5}, number = {2}, year = {1970}, zbl = {0238.20091}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MI_1970__5_2_189015/} }
А.С. Басараб. Изотопия WIP- луп. Matematičeskie issledovaniâ, Tome 5 (1970) no. 2, pp. 3-12. http://geodesic.mathdoc.fr/item/MI_1970__5_2_189015/