L. A. Inda and E. Wolny, “Fluorescent in situ hybridization of the ribosomal RNA genes (5S and 35S) in the genus Lolium: Lolium canariense, the missing link with Festuca?”, An. Jard. Bot. Madr., vol. 70, no. 1, pp. 97–102, Jun. 2013.