(:notitlegroup:) 

   @incollection{sbks89,
    title     = {Robust Beamforming for Matched Field Processing Under Realistic Environmental
                Conditions},
    booktitle = {Underwater Acoustic Data Processing},
    author    = {Henrik Schmidt and Arthur A. Baggeroer and William A. Kuperman and E. K.
                 Scheer},
    editor    = {Y. T. Chan},
    address   = {Dordrecht, The Netherlands},
    publisher = {Kluwer Academic Publishers},
    year      = {1989}}