@article{1183740893,
author = {Weispfenning, Volker},
title = {The Model-Theoretic Significance of Complemented Existential Formulas},
journal = {J. Symbolic Logic},
volume = {46},
number = {1},
year = {1981},
pages = { 843-850},
language = {en},
url = {http://dml.mathdoc.fr/item/1183740893}
}
Weispfenning, Volker. The Model-Theoretic Significance of Complemented Existential Formulas. J. Symbolic Logic, Tome 46 (1981) no. 1, pp. 843-850. http://gdmltest.u-ga.fr/item/1183740893/