@article{GDZPPN00238227X,
title = {The degree of completeness of a partial system of the2-valued Propositional Calculus.},
journal = {Mathematische Zeitschrift},
volume = {55},
year = {1951},
pages = {181-183},
zbl = {0045.29601},
url = {http://dml.mathdoc.fr/item/GDZPPN00238227X}
}
Rose, Alan. The degree of completeness of a partial system of the2-valued Propositional Calculus.. Mathematische Zeitschrift, Tome 55 (1951) pp. 181-183. http://gdmltest.u-ga.fr/item/GDZPPN00238227X/