000 00293pas a2200097 454500
008 160820b1977 xxu||||| |||| 00| 0 eng d
022 _a0146-9592
245 _aOPTICS LETTERS
260 _aWASHINGTON USA
_bOPTICAL SOCIETY OF AMERICA
_c1977
906 _a31(17), 2006+
_b24/Yr
_cOnline
_dJan - Dec,2015
999 _c474434
_d474434