TY  - RPRT
TI  - The Dirac Equation in Projective Relativity.
AU  - A H Taub
AU  - O Veblen
AU  - J von Neumann
PY  - 1934
DO  - 10.1073/pnas.20.6.383
UR  - https://pubmed.ncbi.nlm.nih.gov/16587909/
ID  - 16587909
ER  -