@article{MT_2007_10_2_a2,
     author = {S. V. Dyatlov},
     title = {The {Sectional} {Curvature} {Remains} {Positive} {When} {Taking} {Quotients} by {Certain} {Nonfree} {Actions}},
     journal = {Matemati\v{c}eskie trudy},
     pages = {62--91},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2007_10_2_a2/}
}