Evolutionary relationships and the diversity of the rumen bacteria belonging to the Cytophaga-Flexibacter-Bacteroides phylum G. Avguštin, A. Ramšak, M. Peterka, FV Nekrep and HJ Flint Reprod. Nutr. Dev., 37 Suppl. 1 (1997) 27-28 DOI: 10.1051/rnd:19970707