@misc{sabater2008elsp,
  title = {ELSP variants: a review},
  author = {García Sabater, Julio Juan and García Sabater, José Pedro and Marín García, Juan Antonio and Vidal Carreras, Pilar Isabel},
  eventtitle = {XII Congreso de Ingeniería de Organización = II International Conference on Industrial Engineering and Industrial Management (Burgos, España. . 2008)},
  year = {2008}
}