@article{GDZPPN002349191,
title = {The Decision Problem for Segregated Formulas in First-Order Logic.},
journal = {Mathematica Scandinavica},
volume = {20},
year = {1967},
pages = {233-240},
zbl = {0169.31003},
url = {http://dml.mathdoc.fr/item/GDZPPN002349191}
}
Krom, M.R. The Decision Problem for Segregated Formulas in First-Order Logic.. Mathematica Scandinavica, Tome 20 (1967) pp. 233-240. http://gdmltest.u-ga.fr/item/GDZPPN002349191/