Bizzarri, Mariangela F. and Bishop, Alistair H. (2007) Recovery of Bacillus thuringiensis in vegetative form from the phylloplane of clover (Trifolium hybridum) during a growing season. Journal of Invertebrate Pathology, 94 (1). 38 - 47. ISSN 0022-2011 (doi:https://doi.org/10.1016/j.jip.2006.08.007)

Bizzarri, Mariangela F. (2006) The ecology of Bacillus thuringiensis on the phylloplane. PhD thesis, University of Greenwich.