S. Ramakrishnan

Saccharomyces Cerevisiae Cells Secreting an Aspergillus Niger β-Galactosidase Grow on Whey Permeate

T. Teeri, J. Knowles, Vijay Kumar, 1992, Bio/Technology.

Fermentation of lactose by yeast cells secreting recombinant fungal lactase

S. Ramakrishnan, B. Hartley, 1993, Applied and environmental microbiology.