TY  - RPRT
TI  - Concerning Certain Solvable Equations with Functional Derivatives.
AU  - A D Michal
PY  - 1926
DO  - 10.1073/pnas.12.2.113
UR  - https://pubmed.ncbi.nlm.nih.gov/16587065/
ID  - 16587065
ER  -