1. Burnouf T (1991) Bioseparation 1: 383
2. Naveh D, Siegel RC (1991) Bioseparation 1: 351
3. Nau DR (1989) BioChromatography 4: 4
4. Belew M, Yafang M, Bin L, Berglöf J, Janson J-Ch (1991) Bioseparation 1: 397
5. Kaul, R, Mattiasson B (1992) Bioseparation 3: 1