1. Griffith JB (1990) Advances in immobilization technology. In: Spier RE and Griffith JB (eds.) Animal Cell Biotechnology. Vol. 4 (pp. 147?166) Academic Press, London.
2. Kluft C, Van Wezel AL, Van Der Velden-de Groot CAM, Emeis JJ, Verheijen JH & Wijngaards G (1983) Large scale production of extrinsic (tissue-type) plasminogen activator from human melanoma cells. Adv. in Biotechnol. Proc. 2: 97?110.
3. Levine DW, Wang DIC & Thilly WG (1979) Optimization of growth surface parameters in microcarrier cell culture. Biotech. Bioeng. 21: 821?845.
4. Litwin J (1985) The growth of human diploid fibroblasts as aggregates with cellulose fibres in suspension. Dev. Biol. Stand. 60: 237?242.
5. Maroudas NG (1975) Adhesion and spreading of cells on charged surfaces. J. Theor. Biol. 49: 417?427.