BIBCYT http://bibcyt.ucla.edu.ve/cgi-win/be_alex.exe?Ultimo&Nombrebd=BIBCYT UCLA - Biblioteca de Ciencias y Tecnologia Felix Morales Bueno Pinfield, V. J. P Principal Harlen, O. G. P Principal Povey, M. J. W. P Principal Sleeman, B. D. P Principal Acoustic Propagation in Dispersions in the Long Wavelength Limit Vol: 66 489-509 p.