TY  - RPRT
TI  - The Harmonic Operator for Exterior Differential Forms.
AU  - M P Gaffney
PY  - 1951
DO  - 10.1073/pnas.37.1.48
UR  - https://pubmed.ncbi.nlm.nih.gov/16588988/
ID  - 16588988
ER  -