1. The effects of chromatographically pure bovine chymosin and pepsin A on cheese curd firmness;Andren;J. Dairy Res.,1990
2. Immunohistochemical studies on the development of prochymosin- and pepsinogen-containing cells in bovine abomasal mucosa;Andren;J. Physiol.,1982
3. Changes in immunologically and catalytically active sites of chymosin, bovine pepsin and porcine pepsin;Andren;Neth. Milk Dairy J.,1983
4. Production of prochymosin, pepsinogen and progastricsin, and their cellular and intracellular localization in bovine abomasal mucosa;Andren;Scand. J. Clin. Lab. Investig.,1992
5. Milk-clotting activity of various rennets and coagulants: background and information regarding IDF standards;Andren;Int. Dairy Fed. Bulletin,1998