Dominique de Werra Christine Eisenbeis Sylvain Lelait Bruno Marmol On a Graph-theoretical Model for Cyclic Register Allocation. 191-203 1999 93 Discrete Applied Mathematics 2-3 http://dx.doi.org/10.1016/S0166-218X(99)00105-5 db/journals/dam/dam93.html#WerraELM99