(:notitlegroup:) 

   @article{miller91,
    title     = {Observation and Inversion of Seismo-Acoustic Waves in a Complex Arctic Ice
                Environment},
    author    = {B. E. Miller and Henrik Schmidt},
    journal   = {Journal Acoustical Society of America},
    pages     = {1668--1685},
    volume    = {89},
    year      = {1991}}