@article{Manya:150429,
      author        = "Manya,J. J. and Sanchez,J. L. and Abrego,J. and Gonzalo,A.
                       and Arauzo,J.",
      title         = "{Influence of gas residence time and air ratio on the air
                       gasification of dried sewage sludge in a bubbling fluidised
                       bed}",
      year          = "2006",
}