@article{1183740343,
author = {Cook, Stephen A. and Reckhow, Robert A.},
title = {The Relative Efficiency of Propositional Proof Systems},
journal = {J. Symbolic Logic},
volume = {44},
number = {1},
year = {1979},
pages = { 36-50},
language = {en},
url = {http://dml.mathdoc.fr/item/1183740343}
}
Cook, Stephen A.; Reckhow, Robert A. The Relative Efficiency of Propositional Proof Systems. J. Symbolic Logic, Tome 44 (1979) no. 1, pp. 36-50. http://gdmltest.u-ga.fr/item/1183740343/