(:notitlegroup:) 

   @techreport{saf87,
    title     = {SAFARI: Seismo-Acoustic Fast Field Algorithm for Range Independent
                Environments. User's Guide},
    author    = {Henrik Schmidt},
    address   = {La Spezia, Italy},
    institution = {SACLANT ASW Research Centre},
    number    = {113},
    year      = {1987}}