TY  - RPRT
TI  - On the accuracy of the numerical solution of the Dirichlet problem by finite differences 
AU  - Walsh, J L
AU  - Young, David
PY  - 1953
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 2332
DO  - 10.6028/NBS.RPT.2332
ER  -