TY  - BOOK
AU  - Veblen,Oswald
TI  - Invariants of quadratic differential forms
T2  - Cambridge tracts in mathematics and mathematical physics ; no.24
U1  - 517.4 
PY  - 1962///
CY  - Cambridge
PB  - University Press
KW  - FORMAS CUADRATICAS
KW  - FORMAS DIFERENCIALES
ER  -