@article{GDZPPN002216086,
title = {Induced morphisms for Lambek invariants of commutative squares.},
journal = {Manuscripta mathematica},
volume = {4},
year = {1971},
pages = {263-276},
zbl = {0212.35102},
url = {http://dml.mathdoc.fr/item/GDZPPN002216086}
}
Nomura, Yasutoshi. Induced morphisms for Lambek invariants of commutative squares.. Manuscripta mathematica, Tome 4 (1971) pp. 263-276. http://gdmltest.u-ga.fr/item/GDZPPN002216086/