@article{MZM_1999_65_4_a2,
     author = {N. A. Bobylev},
     title = {Some remarks on star-shaped sets},
     journal = {Matemati\v{c}eskie zametki},
     pages = {511--519},
     publisher = {mathdoc},
     volume = {65},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1999_65_4_a2/}
}