1. Wells, C. M., Lyddiatt, A., and Patel, K. (1987) Liquid fluidised bed adsorption in biochemical recovery from biological suspensions, in Separations for Biotechnology (Verrall, M. S. and Hudson, M. J., eds.), ch. 16, Ellis Horwood Ltd., Chichester, UK, 217–224.
2. Lihme A., Nielsen, C. S., and Bøg-Hansen T. C. (1990) Substance carrying conglomerate. Patents: EP 0538.350, EP 0607998.
3. Wikborg, T., Andersen B. K., Henriksen, L., Biedermann K., Emborg, C., Bøg-Hansen, T. C., and Lihme, A. (1990) Protein purification using a density controlled matrix in fluid bed columns. Poster at The Second International Conference on Separations for Biotechnol. Reading, UK, Sept. 1990.
4. Draeger, N. M. and Chase, H. A. (1991) Liquid fluidised bed adsorption of protein in the presence of cells. Bioseparations 2, 67–80.
5. Wikborg T. and Lihme A. (1991) A new density controlled matrix for protein purification. Poster at 9th Symposium on Affinity Chromatography and Biological Recognition. Yokohama, Japan, Sept. 1991.