@article{1103043511,
author = {Schiffer, M.},
title = {The Fredholm eigen values of plane domains.},
journal = {Pacific J. Math.},
volume = {7},
number = {4},
year = {1957},
pages = { 1187-1225},
language = {en},
url = {http://dml.mathdoc.fr/item/1103043511}
}
Schiffer, M. The Fredholm eigen values of plane domains.. Pacific J. Math., Tome 7 (1957) no. 4, pp. 1187-1225. http://gdmltest.u-ga.fr/item/1103043511/