1. Calculations of eigenvalues for uniform fluid waveguides with complicated cross sections;Laura;J. acoust. Soc. Am.,1967
2. Conformal mapping and the determination of cutoff frequencies of waveguides with arbitrary cross section;Laura,1966
3. Sound propagation in a waveguide having rectangular grooves in the walls;Lapin;Soviet Phys. Acoust.,1960
4. Determination of the eigenvalues for waveguides with complex cross sections;Kashin;Soviet Phys. Acoust.,1966
5. Longitudinal vibrations of a solid propellant rocket motor;Laura,1967