See discussions, stats, and author profiles for this publication at: http://www.researchgate.net/publication/270903351 History of Luminescence from Ancient to Modern Times ARTICLE in DEFECT AND DIFFUSION FORUM · JANUARY 2015 Impact Factor: 0.31 · DOI: 10.4028/www.scientific.net/DDF.361.1 READS 211 1 AUTHOR: Hardev Singh Virk Sri Guru Granth Sahib World University (SG… 493 PUBLICATIONS 1,616 CITATIONS SEE PROFILE Available from: Hardev Singh Virk Retrieved on: 19 December 2015