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@article{MAN_1959__137_160693, author = {SIDNEY F. MACK}, title = {Discontinuities of {Second} {Derivatives} of {Single-Layer} {Potentials.}}, journal = {Mathematische Annalen}, pages = {417--426}, publisher = {mathdoc}, volume = {137}, year = {1959}, zbl = {0087.09604}, url = {http://geodesic.mathdoc.fr/item/MAN_1959__137_160693/} }
SIDNEY F. MACK. Discontinuities of Second Derivatives of Single-Layer Potentials.. Mathematische Annalen, Tome 137 (1959), pp. 417-426. http://geodesic.mathdoc.fr/item/MAN_1959__137_160693/