01035nam a2200301 i 450099100132797970753620020507114531.0970308s1953 us ||| | eng b10205287-39ule_instLE00645925ExLDip.to Fisicaita53.7.353.8537.5LC QC661Brillouin, Léon463562Wave propagation in periodic structures :elastic filters and crystal lattices /Léon Brillouin2nd ed. with correct. and addit.New York :Dover,1953xii, 255 p. :ill. ;21 cm.Electric filtersRadio waves.b1020528708-07-1527-06-02991001327979707536LE006 53.7.3 BRI12006000059053le006-E0.00-l- 03030.i1025345227-06-02Wave propagation in periodic structures192308UNISALENTOle00601-01-97ma -engus 01