TY  - BOOK
AU  - Brouwer, L.E.J.
AU  - Heyting, A., ed.
TI  - Collected works, Vo.1: philosophy and foundations of mathematics
SN  - 0444104747
U1  - 510.8 
PY  - 1975///
CY  - Amsterdam
PB  - North-Holland Pub.Co
ER  -