On the Approximability of the L(h, k)-Labelling Problem on Bipartite Graphs (Extended Abstract).

Tiziana Calamoneri Paola Vocca On the Approximability of the L(h, k)-Labelling Problem on Bipartite Graphs (Extended Abstract). 65-77 2005 conf/sirocco/2005 SIROCCO http://dx.doi.org/10.1007/11429647_7 db/conf/sirocco/sirocco2005.html#CalamoneriV05