@article{01858843, title = {Weakly }, journal = {Balkan Journal of Geometry and its Applications (BJGA)}, volume = {7}, year = {2002}, pages = {67-77}, zbl = {1028.53047}, language = {en}, url = {http://dml.mathdoc.fr/item/01858843} }
Perrone, Domenico. Weakly . Balkan Journal of Geometry and its Applications (BJGA), Tome 7 (2002) pp. 67-77. http://gdmltest.u-ga.fr/item/01858843/