@inbook{inbook642ffaf9,
title   = {Spin-1 ising ferromagnetic in a randon crystal field},
author = {Carneiro, Carlos Eugenio Imbassahy and Henriques, Vera Bohomoletz and Tamashiro, M N and Salinas, Silvio Roberto de Azevedo},
year = {1991},
publisher = {Elsevier Science},
journal   = {Nonlinear Phenomena in Fluids, Solids and Other Comples Systems}
}