@article{1195521883,
author = {Hayashi, Yoshio},
title = {Boundary value problems for the Helmholtz equations, I. The case of coaxial circular arcs},
journal = {Proc. Japan Acad.},
volume = {42},
number = {5},
year = {1966},
pages = { 725-730},
language = {en},
url = {http://dml.mathdoc.fr/item/1195521883}
}
Hayashi, Yoshio. Boundary value problems for the Helmholtz equations, I. The case of coaxial circular arcs. Proc. Japan Acad., Tome 42 (1966) no. 5, pp. 725-730. http://gdmltest.u-ga.fr/item/1195521883/