@article{1256048739, author = {Aharonov, D. and Atzmon, A. and Levin, A.}, title = {On the regularity properties of the variation function}, journal = {Illinois J. Math.}, volume = {22}, number = {4}, year = {1978}, pages = { 295-305}, language = {en}, url = {http://dml.mathdoc.fr/item/1256048739} }
Aharonov, D.; Atzmon, A.; Levin, A. On the regularity properties of the variation function. Illinois J. Math., Tome 22 (1978) no. 4, pp. 295-305. http://gdmltest.u-ga.fr/item/1256048739/