@article{IVM_2005_5_a3, author = {P. Ya. Grushko and N. M. Kuzub and M. A. Gaer}, title = {Immersed hypersurfaces in spaces with structure groups $G^n_2$ and $COG_2$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {42--48}, publisher = {mathdoc}, number = {5}, year = {2005}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2005_5_a3/} }