A Segmentation-free Recognition of Two Touching Numerals using Neural Network. - Soon-Man Choi; Il-Seok Oh (ICDAR, 1999)

A Segmentation-Free Recognition of Handwritten Touching Numeral Pairs Using Modular Neural Network. - Soon-Man Choi; Il-Seok Oh (Int. J. Pattern Recognit. Artif. Intell., 2001)