@article{IVM_1992_6_a6,
     author = {P. Ya. Grushko},
     title = {Generalized-homogeneous geometric structures},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {58--62},
     year = {1992},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1992_6_a6/}
}