@article{1093870521,
author = {Manca, V. and Salibra, A.},
title = {First-order theories as many-sorted algebras.},
journal = {Notre Dame J. Formal Logic},
volume = {25},
number = {1},
year = {1984},
pages = { 86-94},
language = {en},
url = {http://dml.mathdoc.fr/item/1093870521}
}
Manca, V.; Salibra, A. First-order theories as many-sorted algebras.. Notre Dame J. Formal Logic, Tome 25 (1984) no. 1, pp. 86-94. http://gdmltest.u-ga.fr/item/1093870521/