@article{1250523559,
author = {Watanabe, Mineko},
title = {Generalized normal derivatives of principal functions},
journal = {J. Math. Kyoto Univ.},
volume = {12},
number = {2},
year = {1972},
pages = { 33-54},
language = {en},
url = {http://dml.mathdoc.fr/item/1250523559}
}
Watanabe, Mineko. Generalized normal derivatives of principal functions. J. Math. Kyoto Univ., Tome 12 (1972) no. 2, pp. 33-54. http://gdmltest.u-ga.fr/item/1250523559/