@article{bwmeta1.element.desklight-6723b2b6-7a99-40f2-b9ed-17e1b23b00d6, author = {J. Perkal}, title = {O d\l ugo\'sci krzywych empirycznych}, journal = {Applicationes Mathematicae}, volume = {3}, year = {1958}, pages = {258-284}, language = {pl}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-6723b2b6-7a99-40f2-b9ed-17e1b23b00d6} }
J. Perkal. O długości krzywych empirycznych. Applicationes Mathematicae, Tome 3 (1958) pp. 258-284. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-6723b2b6-7a99-40f2-b9ed-17e1b23b00d6/