Socio-economic drivers and non-indigenous freshwater crayfish species in EuropeCostas Perdikaris, Pavel Kozák, Antonín Kouba, Evangelos Konstantinidis and Ioannis PaschosKnowl. Managt. Aquatic Ecosyst., 404 (2012) 01DOI: https://doi.org/10.1051/kmae/2011077