@article{IVM_2009_12_a7,
     author = {A. V. Aristarkhova},
     title = {Pseudoconformally-flat and pseudo-flat {quasi-Sasakian} manifolds},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {69--73},
     publisher = {mathdoc},
     number = {12},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2009_12_a7/}
}