TY  - BOOK
AU  - Lorentz, H. A.
AU  - Einstein, Albert.
TI  - The pricnciple of relativity: : a collection of original memoirs on the special and general theory of relativity
U1  - 530.11 
PY  - 1923///
CY  - New York
PB  - DOver
KW  - Relatividad (Física)
ER  -