Xu, X., Liu, X., Zhang, Q. and Wu, J. (2011) “Morph-specific differences in life history traits between the winged and wingless morphs of the aphid, <i>Sitobion avenae</i> (Fabricius) (Hemiptera: Aphididae)”, Entomologica Fennica, 22(1), pp. 56–64. doi: 10.33338/ef.84543.