@article{GDZPPN002287412,
title = {Discontinuities of Second Derivatives of Single-Layer Potentials.},
journal = {Mathematische Annalen},
volume = {137},
year = {1959},
pages = {417-426},
zbl = {0087.09604},
url = {http://dml.mathdoc.fr/item/GDZPPN002287412}
}
MACK, SIDNEY F. Discontinuities of Second Derivatives of Single-Layer Potentials.. Mathematische Annalen, Tome 137 (1959) pp. 417-426. http://gdmltest.u-ga.fr/item/GDZPPN002287412/