On factorisations of complete graphs into circulant graphs and the   Oberwolfach Problem
  Various results on factorisations of complete graphs into circulant graphs and on 2-factorisations of these circulant graphs are proved. As a consequence, a number of new results on the Oberwolfach Problem are obtained. For example, a complete solution to the Oberwolfach Problem is given for every 2-regular graph of order 2p where p = 5 (mod 8) is prime. 
Brian Alspach, Darryn Bryant, Daniel Horsley, Barbara Maenhaut, Victor   Scharaschkin
math.CO