PHONON - PHONON INTERACTIONSECOND SOUND IN SOLIDS : THE EFFECTS OF COLLINEAR AND NON-COLLINEAR THREE PHONON PROCESSES S. J. ROGERSJ. Phys. Colloques, 33 C4 (1972) C4-111-C4-117DOI: https://doi.org/10.1051/jphyscol:1972424
