?url_ver=Z39.88-2004&rft_id=10.3844%2Fajassp.2016.552.561&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ibrahim&rft.au=Ibrahim%2C+A.M.&rft.aufirst=A.M.&rft.date=2016&rft.title=American+Journal+of+Applied+Sciences&rft.atitle=Classification+of+breast+tumor+in+mammogram+images+using+unsupervised+feature+learning&rft.pages=552-561&rft.volume=13&rft.issn=15469239&rft.issue=5&rft.genre=article