@articleLoog_Duin_Haeb-Umbach_2001, title=Multiclass linear dimension reduction by weighted pairwise Fisher criteria, volume=23, DOI=10.1109/34.935849, number=7, journal=IEEE Transactions on Pattern Analysis and Machine Intelligence, author=Loog, M. and Duin, R.P.W. and Haeb-Umbach, Reinhold, year=2001, pages=762–766