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Created page with "== Target Article == Retraction notice to 'Studies on the effect of instability of divergence, pointing and amplitude of green and yellow radiation pulses of copper vapour laser in second harmonic and sum frequency conversion' [Opt. Laser Technol. 45 (2012) 428–434]; Prakash, Om; Mahakud, Ramakanta; Nakhe, Shankar V.; Dixit, Sudhir K.; ; NULL; 2013-6-01; https://doi.org/10.1016/j.optlastec.2012.12.016 == Reasons == Note: Reasons not yet here included, but you are welco..."