adiabaticité du son

[1974] Adiabatic Assumption for Wave Propagation ; N. H. Fletcher ; American Journal of Physics 42 (jun 1974) p. 487 [lien]
[1976] [Notes and Discussions] Adiabatic assumption for wave propagation ; N. H. Fletcher ; American Journal of Physics 44 (mai 1976) p. 486 [lien]