(:notitlegroup:) 

   @article{hsmfp90,
    title     = {Environmentally Tolerant Beamforming for High-Resolution Matched Field
                Processing: Deterministic Mismatch},
    author    = {Henrik Schmidt and Arthur A. Baggeroer and William A. Kuperman and E. K.
                 Scheer},
    journal   = {Journal Acoustical Society of America},
    pages     = {1851--1862},
    volume    = {88(4)},
    year      = {1990}}