@article{1102715142,
author = {Lenzi, G. and Tortorelli, V. M.},
title = {A basic theory with predicates},
journal = {Bull. Belg. Math. Soc. Simon Stevin},
volume = {9},
number = {4},
year = {2002},
pages = { 73-100},
language = {en},
url = {http://dml.mathdoc.fr/item/1102715142}
}
Lenzi, G.; Tortorelli, V. M. A basic theory with predicates. Bull. Belg. Math. Soc. Simon Stevin, Tome 9 (2002) no. 4, pp. 73-100. http://gdmltest.u-ga.fr/item/1102715142/