000 00414pam a2200133a 44500
008 140414b1991 xxu||||| |||| 00| 0 eng d
082 _a621.381
_bASH
245 _aElectronic Letters Volume-27 No-14 4th July 1991
_cedited by ASH,S E
260 _aSTEVENAGE
_bIEE MICHAEL FARADAY HOUSE
_c1991
650 _aELECTRONIC LETTERS
690 _aELECTRICAL & ELECTRONICS ENGINEERING
700 _aASH,S E
906 _a43787
999 _c41420
_d41420