@article{grps2004-3,

   author = "O. Sapena, E. Onaindia",

   title = "Handling numeric criteria in relaxed planning graphs",

   journal = "IBERAMIA-04",

   publisher = "Springer Verlag. LNAI",

   volume = "3315",

   pages = "114-123",

   isbn = "3-540-23806-9",

   year = "2004"

}