TY  - RPRT
TI  - On Interpolation to Harmonic Functions by Harmonic Polynomials.
AU  - J L Walsh
PY  - 1932
DO  - 10.1073/pnas.18.7.514
UR  - https://pubmed.ncbi.nlm.nih.gov/16577461/
ID  - 16577461
ER  -