1. 2. A. Hellberg, H. Winkler, and H. Lustig, 1958 . [Comparative investigations of different ensiling additives carried out at Flahult and Alnarp (Sweden) during 1953-6 .]Medd. 68 Stat. Husdjursforsok. In Swedish with German summary.
2. 4. S. Nordfeldt, 1955 . Silage experiments; test of preservatives such as carbohydrates, different salts and AlV-liquid .Medd. 58Stat. Husdjursfoursok. In Swedish with English summary.
3. Studies on fermentation processes in silage