@article{CM_1970__22_3_269_0, author = {Goebel, K.}, title = {Convexity of balls and fixed-point theorems for mappings with nonexpansive square}, journal = {Compositio Mathematica}, pages = {269--274}, publisher = {Wolters-Noordhoff Publishing}, volume = {22}, number = {3}, year = {1970}, mrnumber = {273477}, zbl = {0202.12802}, language = {en}, url = {http://www.numdam.org/item/CM_1970__22_3_269_0/} }
TY - JOUR AU - Goebel, K. TI - Convexity of balls and fixed-point theorems for mappings with nonexpansive square JO - Compositio Mathematica PY - 1970 SP - 269 EP - 274 VL - 22 IS - 3 PB - Wolters-Noordhoff Publishing UR - http://www.numdam.org/item/CM_1970__22_3_269_0/ LA - en ID - CM_1970__22_3_269_0 ER -
Goebel, K. Convexity of balls and fixed-point theorems for mappings with nonexpansive square. Compositio Mathematica, Tome 22 (1970) no. 3, pp. 269-274. http://www.numdam.org/item/CM_1970__22_3_269_0/
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