Complete Balanced Howell Rotations for 16k + 12 Partnerships. - Frank K. Hwang; Qin De Kang; Jia En Yu (J. Comb. Theory A, 1984)

The Existence of Symmetric Skew Balanced Starters for Odd Prime Powers. - Jia En Yu; Frank K. Hwang (Eur. J. Comb., 1988)