@article{GDZPPN002045494,
title = {Solving algebraic problems in propositional logic by tableau.},
journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
volume = {22},
year = {1982},
pages = {187-190},
zbl = {0487.03004},
url = {http://dml.mathdoc.fr/item/GDZPPN002045494}
}
Cowen, R.H. Solving algebraic problems in propositional logic by tableau.. Archiv für mathematische Logik und Grundlagenforschung, Tome 22 (1982) pp. 187-190. http://gdmltest.u-ga.fr/item/GDZPPN002045494/