Solving the Crop Allocation Problem using Hard and Soft ConstraintsMahuna Akplogan, Simon de Givry, Jean-Philippe Métivier, Gauthier Quesnel, Alexandre Joannon and Frédérick GarciaRAIRO-Oper. Res., 47 2 (2013) 151-172DOI: https://doi.org/10.1051/ro/2013032