@article{IVM_1995_7_a3,
     author = {V. I. Marmazeev},
     title = {Naturally reductive reducible $R\Sigma$-spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {28--37},
     publisher = {mathdoc},
     number = {7},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1995_7_a3/}
}