000 00338nam a2200121 4500
008 160616s 000 0
245 _aWave propagation and group velocity
100 _aBrillouin, Leon
440 _aPure and applied physics, a series of monographs and text
500 _aC3:2 K0
942 _cBK
_2BK7837
080 _a534.84 BRI
999 _c7837
_d7837