Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1987_17_2a_6, author = {{\CYRYA}{\cyra}{\cyrn}{\cyre}{\cyrz} {\CYRU}{\cyrsh}{\cyra}{\cyrn}}, title = {{\CYRO}{\cyrd}{\cyri}{\cyrn} {\cyrk}{\cyrl}{\cyra}{\cyrs}{\cyrs} 6-{\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}{\cyro}{\cyri}{\cyrd}{\cyro}{\cyrv} {\cyri} {2{\CYRN}-{\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyri}}}, journal = {Novi Sad Journal of Mathematics}, pages = {89-108}, publisher = {mathdoc}, volume = {17}, number = {2}, year = {1987}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1987_17_2a_6/} }
Яанез Ушан. Один класс 6-группоидов и 2Н-геометрии. Novi Sad Journal of Mathematics, Tome 17 (1987) no. 2. http://geodesic.mathdoc.fr/item/NSJOM_1987_17_2a_6/