TY  - BOOK
AU  - Fokker,A.D.(Adriaan Daniel),1887- u.
TI  - Time and Space Weight and Inertia: a chronogeometrical introduction to Einstein's theory 
PY  - 1965///
CY  - Oxford
PB  - Pergamon Press
KW  - Relativity (Physics)
N1  - Bibliography: p. 183
ER  -