RT Book, Section SR 00 A1 Sigmund, K. T1 Hans Hahn and the foundational debate YR 1995 FD 1995 SP 235 OP 245 A2 DePauli-Schimanovich, W. A2 Köhler, E. A2 Stadler, F. T2 The Foundational Debate Complexity and Constructivity in Mathematics and Physics ED 3 PB Springer T3 Vienna Circle Institute Yearbook SN 978-94-017-3327-4 AV Published LK https://pure.iiasa.ac.at/id/eprint/4227/ UL http://www.univie.ac.at/ivc/publikat/index.htm