Vanhaecht, JL., Bolipombo, M., & Rouxhet, P. (1985). Immobilization of Saccharomyces-cerevisiae By Adhesion - Treatment of the Cells By Al Ions. Biotechnology and Bioengineering, 27(3), 217-224. https://doi.org/10.1002/bit.260270302 (Original work published 1985)