Ajit A. DiwanJustine E. DionDavid J. MendellMichael PlantholtShailesh K. TipnisThe complexity of P4-decomposition of regular graphs and multigraphs.63-76201517Discret. Math. Theor. Comput. Sci.2https://doi.org/10.46298/dmtcs.2128db/journals/dmtcs/dmtcs17.html#DiwanDMPT15