By Sekhon Jagmeet Singh   Verma S.S.   in Journal of Modern Optics

ISSN:1362-3044|62|6|435-440

Taylor & Francis Ltd‎(2015)‎

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By Sekhon Jagmeet Singh   Malik Hitendra K.   Verma S.S.   in Sensor Letters

ISSN:1546-1971|11|3|512-518

American Scientific Publishers‎(2013)‎

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