@article{1183739040,
author = {Richardson, Daniel},
title = {Sets of Theorems with Short Proofs},
journal = {J. Symbolic Logic},
volume = {39},
number = {1},
year = {1974},
pages = { 235-242},
language = {en},
url = {http://dml.mathdoc.fr/item/1183739040}
}
Richardson, Daniel. Sets of Theorems with Short Proofs. J. Symbolic Logic, Tome 39 (1974) no. 1, pp. 235-242. http://gdmltest.u-ga.fr/item/1183739040/