TY  - RPRT
TI  - On Super-Novae.
AU  - W Baade
AU  - F Zwicky
PY  - 1934
DO  - 10.1073/pnas.20.5.254
UR  - https://pubmed.ncbi.nlm.nih.gov/16587881/
ID  - 16587881
ER  -