TY  - RPRT
TI  - Partial Differential Equations and Generalized Analytic Functions: Second Note.
AU  - L Bers
PY  - 1951
DO  - 10.1073/pnas.37.1.42
UR  - https://pubmed.ncbi.nlm.nih.gov/16588987/
ID  - 16588987
ER  -