@article{IVM_2001_4_a9,
     author = {O. V. Khyshova and E. I. Yakovlev},
     title = {Ricci curvatures of manifolds of {Kaluza{\textendash}Klein} type},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {58--61},
     year = {2001},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2001_4_a9/}
}