(:notitlegroup:) 

   @article{jasa94a,
    title     = {Spectral and Modal Representations of the Doppler-Shifted Field in Ocean
                Waveguides},
    author    = {Henrik Schmidt and William A. Kuperman},
    journal   = {Journal Acoustical Society of America},
    pages     = {386--395},
    volume    = {96(1)},
    year      = {1994}}