@TechReport{BierCrit99,
author = {Michel Bierlaire and Frank Crittin },
title = {Optimisation de grande taille sans d\'eriv\'ee: Etat de l'art et perspectives},
institution = {Operations Research Group ROSO, Ecole Polytechnique F\'ed\'erale de Lausanne},
number = {RO 99.04.14},
year = {1999}
}