TY  - JOUR
AU  - N. S. Grigor'ev
TI  - The Ursell Method for apriori Estimation of the Solution of the Neumann Problem for the Helmholtz Equation
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1974
SP  - 85
EP  - 154
VL  - 42
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1974_42_a5/
LA  - ru
ID  - ZNSL_1974_42_a5
ER  -