TY  - RPRT
TI  - Generalized Eisenstein series and non-analytic automorphic functions.
AU  - R BELLMAN
PY  - 1950
DO  - 10.1073/pnas.36.6.356
UR  - https://pubmed.ncbi.nlm.nih.gov/15430310/
ID  - 15430310
ER  -