@article{10_4064_cm_19_1_59_66, author = {R. Telg\'arsky}, title = {Derivatives of cartesian product and dispersed spaces}, journal = {Colloquium Mathematicum}, pages = {59--66}, publisher = {mathdoc}, volume = {19}, number = {1}, year = {1968}, doi = {10.4064/cm-19-1-59-66}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-19-1-59-66/} }