Colleary, Sandra and Ó Fágáin, Ciarán (2008) Chemically stabilized subtilisins in peptide synthesis. In: Flynne, William G., (ed.) Biotechnology and bioengineering. Nova Science Publishers, Hauppauge, NY, pp. 75-97. ISBN 978-1-60456-067-1

Colleary, Sandra (2003) The use of chemically stabilised proteolytic enzymes in peptide synthesis. PhD thesis, Dublin City University.