@article{bwmeta1.element.desklight-b78ac0af-85de-4e8e-bf9c-00be2291d303, author = {L. Siewierski}, title = {<title-group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><article-title/></title-group>}, journal = {Annales Polonici Mathematici}, volume = {21}, year = {1969}, pages = {243-253}, zbl = {0187.02604}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-b78ac0af-85de-4e8e-bf9c-00be2291d303} }
L. Siewierski. . Annales Polonici Mathematici, Tome 21 (1969) pp. 243-253. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-b78ac0af-85de-4e8e-bf9c-00be2291d303/