Repetitions in two-pattern strings. - Frantisek Franek; Weilin Lu; William F. Smyth (Stringology, 2000)

Two-Pattern Strings. - Frantisek Franek; Jiandong Jiang; Weilin Lu; William F. Smyth (CPM, 2002)

Two-pattern strings I - A recognition algorithm. - Frantisek Franek; Weilin Lu; William F. Smyth (J. Discrete Algorithms, 2003)