Rauramaa, A., J. Setälä, T. Moisio, S. Sivelä, T. Heikkilä, and M. Lampila. “The Effect of Inoculants and Cellulase on the Fermentation and Microbiological Composition of Grass Silage: II Microbiological Changes in the Silages ”. Agricultural and Food Science, vol. 59, no. 5, Dec. 1987, pp. 371-7, doi:10.23986/afsci.72270.