000 00294pam a2200133a 44500
082 _aBTS
_bMONO 3935
100 _aSchawlow,A L
245 1 _aOPTICAL MASERS
260 _a
_b
_c1961
300 _a10
500 _aBound With Bts Mono 3921-34,3936-50
964 _gCIRC
997 _aTR19079 C
999 _c402850
_d402850