@article{CMJ_2002__52_3_a0,
     author = {Grace, S. R. and Kulenovi\'c, M. R. S. and El-Metwally, H.},
     title = {On the stability of solutions of certain systems of differential equations with piecewise constant argument},
     journal = {Czechoslovak Mathematical Journal},
     pages = {449--461},
     publisher = {mathdoc},
     volume = {52},
     number = {3},
     year = {2002},
     mrnumber = {1923252},
     zbl = {1023.34067},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2002__52_3_a0/}
}