New Notation and Classification Scheme for Vehicle Routing Problems Wahiba Ramdane Cherif-Khettaf, Mais Haj Rachid, Christelle Bloch and Pascal Chatonnay RAIRO-Oper. Res., 49 1 (2015) 161-194 Published online: 17 December 2014 DOI: 10.1051/ro/2014030