@article{urn:eudml:doc:42757, title = {Polycircular and semi-tubular domains in normed spaces.}, journal = {Revista de la Real Academia de Ciencias Exactas F\'\i sicas y Naturales}, volume = {80}, year = {1986}, pages = {67-72}, zbl = {0631.32019}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:42757} }
Salles Batarce, Irineu. Polycircular and semi-tubular domains in normed spaces.. Revista de la Real Academia de Ciencias Exactas Físicas y Naturales, Tome 80 (1986) pp. 67-72. http://gdmltest.u-ga.fr/item/urn:eudml:doc:42757/