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Improvement of contrast of images in Poor Light : a Research and Analysis
Divyam Madaan, Sonia Chaudhary, Susheel Kumar, 2012 .
Chapter 9 Evolution , hybridisation , and clonal distribution of apo-and amphimictic species of Hieracium subgen . Pilosella ( Asteraceae , Lactuceae ) in a Central European mountain range
František, Bräutigam, J. Fehrer, 2004 .