@article{MZM_2009_85_6_a8,
     author = {V. G. Naidenko},
     title = {Contractibility of {Half-Spaces} of {Partial} {Convexity}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {915--926},
     publisher = {mathdoc},
     volume = {85},
     number = {6},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2009_85_6_a8/}
}