Ljungström G, Stjernstedt M, Wapstra E, Olsson M. In press. Selection and constraints on offspring size-number trade-offs in sand lizards (Lacerta agilis) Journal of Evolutionary Biology.
Ljungström G, Wapstra E, Olsson M. 2015. Sand lizard (Lacerta agilis) phenology in a warming world BMC Evolutionary Biology. 15: 206. DOI: 10.1186/s12862-015-0476-0 open access http://bmcevolbiol.biomedcentral.com/articles/10.1186/s12862-015-0476-0