@article{MT_2006_9_1_a4,
     author = {E. V. Nikitenko},
     title = {Seven-Dimensional {Homogeneous} {Einstein} {Manifolds\break} of {Negative} {Sectional} {Curvature}},
     journal = {Matemati\v{c}eskie trudy},
     pages = {101--116},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2006_9_1_a4/}
}