Michael Giudici Cai Heng Li Primoz Potocnik Cheryl E. Praeger Homogeneous factorisations of graphs and digraphs. 11-37 2006 27 Eur. J. Comb. 1 http://dx.doi.org/10.1016/j.ejc.2004.08.003 db/journals/ejc/ejc27.html#GiudiciLPP06