TY  - BOOK
AU  - Gentzen,Gerhard
AU  - Szabo,M.E
TI  - The collected papers of Gerhard Gentzen
U1  - 164 
PY  - 1969///
CY  - Amsterdam
PB  - North-Holland Pub.
KW  - Logic, Symbolic and mathematical
KW  - Metamathematics
N1  - Includes index
ER  -