?url_ver=Z39.88-2004&rft_id=10.1016%2F0377-2217(94)00105-L&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Stam%2C+A.&rft.aulast=Stam&rft.aufirst=A.&rft.issue=2&rft.volume=86&rft.date=19+October+1995&rft.issn=0377-2217&rft.atitle=RAGNU%3A+A+microcomputer+package+for+two-group+mathematical+programming-based+nonparametric+classification&rft.title=European+Journal+of+Operations+Research&rft.pages=374-388&rft.genre=article