@article{TIMM_1998_5_a17,
     author = {L. P. Vlasov},
     title = {``Suns'' and geometric properties of the unit sphere in {a~Banach} space},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {247--253},
     publisher = {mathdoc},
     volume = {5},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TIMM_1998_5_a17/}
}