Grother, P.
(1992),
Karhunen Loeve Feature Extraction for Neural Handwritten Character Recognition, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=900635
(Accessed October 7, 2024)