Dörr, Ambrosius J.M., et al. “A Model of Co-Occurrence: Segregation and Aggregation Patterns in the Mycoflora of the Crayfish Procambarus Clarkii in Lake Trasimeno (central Italy)”. Journal of Limnology, vol. 71, no. 1, Jan. 2012, p. e14, doi:10.4081/jlimnol.2012.e14.