@article{1183493363,
author = {Brand, Louis},
title = {The role of direction in the variations of a definite integral in space},
journal = {Bull. Amer. Math. Soc.},
volume = {35},
number = {6},
year = {1929},
pages = { 565-570},
language = {en},
url = {http://dml.mathdoc.fr/item/1183493363}
}
Brand, Louis. The role of direction in the variations of a definite integral in space. Bull. Amer. Math. Soc., Tome 35 (1929) no. 6, pp. 565-570. http://gdmltest.u-ga.fr/item/1183493363/