@article{TMF_2009_158_3_a1,
     author = {Z. Kh. Zakirova},
     title = {Rigid six-dimensional $h$-spaces of constant curvature},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {347--354},
     publisher = {mathdoc},
     volume = {158},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2009_158_3_a1/}
}