(en) Jacopo Rossi, Ursula Gamba, Massimo Pinna, Sandra Spagnolo, Cristina Visentin, Alberto Alma, « Hoverflies in organic apple orchards in north-western Italy », Bulletin of Insectology, Bologna, Facolta' Di Agraria Universita' Di Bologna, vol. 59, no 2, , p. 111–114 (ISSN1721-8861, lire en ligne, consulté le )
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(en) Santos Rojo, Keith R. Hopper and M. Angeles Marcos-García, « Fitness of the hover flies Episyrphus balteatus and Eupeodes corollae faced with limited larval prey », Journal Entomologia Experimentalis et Applicata, Springer Netherlands, vol. 81, no 1, , p. 53–59 (ISSN0013-8703, DOI10.1007/BF00187838)
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(en) Santos Rojo, Keith R. Hopper and M. Angeles Marcos-García, « Fitness of the hover flies Episyrphus balteatus and Eupeodes corollae faced with limited larval prey », Journal Entomologia Experimentalis et Applicata, Springer Netherlands, vol. 81, no 1, , p. 53–59 (ISSN0013-8703, DOI10.1007/BF00187838)
(en) Jacopo Rossi, Ursula Gamba, Massimo Pinna, Sandra Spagnolo, Cristina Visentin, Alberto Alma, « Hoverflies in organic apple orchards in north-western Italy », Bulletin of Insectology, Bologna, Facolta' Di Agraria Universita' Di Bologna, vol. 59, no 2, , p. 111–114 (ISSN1721-8861, lire en ligne, consulté le )