@article{1093956238,
author = {Hermes, Hans},
title = {In memoriam: Wilhelm Ackermann (1896-1962).},
journal = {Notre Dame J. Formal Logic},
volume = {8},
number = {3},
year = {1967},
pages = { 1-8},
language = {en},
url = {http://dml.mathdoc.fr/item/1093956238}
}
Hermes, Hans. In memoriam: Wilhelm Ackermann (1896-1962).. Notre Dame J. Formal Logic, Tome 8 (1967) no. 3, pp. 1-8. http://gdmltest.u-ga.fr/item/1093956238/