@article{articlece22ad31,
title   = {Etude de la stabilite et de la response a un echelon de phase d'une boucle a verrouillage de phase, para la tranformee en z},
author = {Cunha Júnior, Henrique Antunes and Demorise, J C and Abignoli, M},
year = {1985},
journal   = {Journal of Control and Computers}
}