01016nam0-2200337li-450 99000017818020331620180312154610.00-85274-468-40017818USA010017818(ALEPH)000017818USA01001781820001109d1986----km-y0itay0103----baengGBWaves in focal regionspropagation, diffraction and focusing of light, sound and water wavesJakob J. StamnesBristolAdam Hilgercopyr. 1986onde (fisica)531.113 3Stamnes,Jakob J.745463Sistema bibliotecario di Ateneo dell' Università di SalernoRICA990000178180203316531.113 3 STA0005477BKTEC1995013020001110USA01171320020403USA011625PATRY9020040406USA011613Waves in focal regions1486796UNISA