1. Alkhedir H 2009 Molecular Characterisation of Sitobion avenae F. Clones and their Interaction with Different Host Plants University of Göttingen Göttingen, Germany
2. Host plant quality and fecundity in herbivorous insects;Awmack;Annual Review of Entomology,2002
3. Test competing measures of profitability for mobile resources;Barrette;Oecologia,2009
4. Barton K 2011 MuMIn: Multi-Model Inference http://CRAN.R-project.org/package=MuMIn
5. Bates D Mächler M Bolker B 2011 lme4: Linear Mixed-Effects Models Using S4 Classes http://CRAN.R-project.org/package=lme4