Self-gravitational force calculation of infinitesimally thin gaseous disks. - Chien-Chang Yen; Ronald E. Taam; Ken Huai-Che Yeh; Kang C. Jea (J. Comput. Phys., 2012)

A Postverification Method for Solving Forced Duffing Oscillator Problems without Prescribed Periods. - Hong-Yen Lin; Chien-Chang Yen; Kuo-Ching Jen; Kang C. Jea (J. Appl. Math., 2014)