Nonexistence of a pair of arc disjoint directed Hamilton cycles on line digraphs of 2-diregular digraphs. - Thamodharan Govindan; Appu Muthusamy (Discret. Math. Algorithms Appl., 2015)

Perfect set of Euler tours of Kp, p, p. - Thamodharan Govindan; Appu Muthusamy (Discuss. Math. Graph Theory, 2016)