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Submitted on: 11 August 1999.
Revised on: 11 September 1999.
Accepted on: 24 September 1999.
LASERS IN ENGINEERING
Submitted on: 29 April 2014.
Revised on: 06 May 2014.
Accepted on: 21 May 2014.
LASERS IN ENGINEERING---OLD CITY PUBLISHING INC
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