@article{2885, author = {Wilansky, A.}, title = {An extension of Helly's theorem for Banach spaces}, journal = {Portugaliae mathematica}, volume = {38}, year = {1979}, pages = {139-140}, zbl = {0471.46006}, mrnumber = {0682362}, language = {en}, url = {http://dml.mathdoc.fr/item/2885} }
Wilansky, A. An extension of Helly's theorem for Banach spaces. Portugaliae mathematica, Tome 38 (1979) pp. 139-140. http://gdmltest.u-ga.fr/item/2885/