@article{CM_1970__22_4_383_0, author = {Bryant, V. W.}, title = {The convexity of the subset space of a metric space}, journal = {Compositio Mathematica}, volume = {22}, year = {1970}, pages = {383-385}, mrnumber = {275293}, zbl = {0205.27102}, language = {en}, url = {http://dml.mathdoc.fr/item/CM_1970__22_4_383_0} }
Bryant, V. W. The convexity of the subset space of a metric space. Compositio Mathematica, Tome 22 (1970) pp. 383-385. http://gdmltest.u-ga.fr/item/CM_1970__22_4_383_0/
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