@article{1225113732,
author = {GOUDA, Norio},
title = {The theorem of E. Hopf under uniform magnetic fields},
journal = {J. Math. Soc. Japan},
volume = {50},
number = {4},
year = {1998},
pages = { 767-779},
language = {en},
url = {http://dml.mathdoc.fr/item/1225113732}
}
GOUDA, Norio. The theorem of E. Hopf under uniform magnetic fields. J. Math. Soc. Japan, Tome 50 (1998) no. 4, pp. 767-779. http://gdmltest.u-ga.fr/item/1225113732/