TY  - RPRT
TI  - A Majorant Method For Non-Linear Partial Differential Equations.
AU  - S Bergman
AU  - M Schiffer
PY  - 1951
DO  - 10.1073/pnas.37.11.744
UR  - https://pubmed.ncbi.nlm.nih.gov/16578414/
ID  - 16578414
ER  -