1. Písecký, J., (1997). Handbook of milk powder manufacture. Niro A/S, Copenhagen, Denmark. (see also http://pisecky.freeyellow.com).
2. Westergaard, V., (2004). Milk powder technology. Niro A/S, Copenhagen, Denmark.
3. Niro A/S. (2003). US Patent Application (published at US 2003/0196957), International Patent Application (published at WO 03/086091).