Gama, Zulfaidah Penata, Pablo Morlacchi, Giuseppe Carlo Lozzia, Johann Baumgärtner, and Anna Giorgi. 2010. “Towards a Better Understanding of the Dynamics of Aphis Spiraecola Patch (Homoptera: Aphididae) Populations in Commercial Alpine Yarrow Fields”. Journal of Entomological and Acarological Research 42 (2):103-16. https://doi.org/10.4081/jear.2010.103.