@article{1077475359, author = {Helsel, R. G.}, title = {Convergence in area and convergence in volume}, journal = {Duke Math. J.}, volume = {16}, number = {1}, year = {1949}, pages = { 111-118}, language = {en}, url = {http://dml.mathdoc.fr/item/1077475359} }
Helsel, R. G. Convergence in area and convergence in volume. Duke Math. J., Tome 16 (1949) no. 1, pp. 111-118. http://gdmltest.u-ga.fr/item/1077475359/