[u' @inproceedings{lago_plataforma_2006, address = {Monterrey, Mexico}, title = {Plataforma de servicios de valor a\xf1adido: {WALLIP}}, author = {Lago, Ana B. and Larizgoitia, Iker and V\xe1zquez, Juan Ignacio}, year = {2006}, keywords = {WALLIP, Web services, location based services} }']