Filz، Katharina J؛ Engler، Jan O؛ Stoffels، Johannes؛ Weitzel، Matthias؛ Schmitt، Thomas (2012). "Missing the target? A critical view on butterfly conservation efforts on calcareous grasslands in south-western Germany". Biodiversity and Conservation. ج. 22 ع. 10: 2223–41. DOI:10.1007/s10531-012-0413-0. INIST:27586585.
Dapporto، Leonardo؛ Dennis، Roger L.H (2013). "The generalist–specialist continuum: Testing predictions for distribution and trends in British butterflies". Biological Conservation. ج. 157: 229–36. DOI:10.1016/j.biocon.2012.09.016. INIST:27189070.
Callegari، Sarah E؛ Bonham، Emma؛ Hoodless، Andrew N؛ Sage، Rufus B؛ Holloway، Graham J (2014). "Impact of game bird release on the Adonis blue butterfly Polyommatus bellargus (Lepidoptera Lycaenidae) on chalk grassland". European Journal of Wildlife Research. ج. 60 ع. 5: 781–7. DOI:10.1007/s10344-014-0847-7. INIST:28735005.
Filz، Katharina J؛ Engler، Jan O؛ Stoffels، Johannes؛ Weitzel، Matthias؛ Schmitt، Thomas (2012). "Missing the target? A critical view on butterfly conservation efforts on calcareous grasslands in south-western Germany". Biodiversity and Conservation. ج. 22 ع. 10: 2223–41. DOI:10.1007/s10531-012-0413-0. INIST:27586585.
Dapporto، Leonardo؛ Dennis، Roger L.H (2013). "The generalist–specialist continuum: Testing predictions for distribution and trends in British butterflies". Biological Conservation. ج. 157: 229–36. DOI:10.1016/j.biocon.2012.09.016. INIST:27189070.
Callegari، Sarah E؛ Bonham، Emma؛ Hoodless، Andrew N؛ Sage، Rufus B؛ Holloway، Graham J (2014). "Impact of game bird release on the Adonis blue butterfly Polyommatus bellargus (Lepidoptera Lycaenidae) on chalk grassland". European Journal of Wildlife Research. ج. 60 ع. 5: 781–7. DOI:10.1007/s10344-014-0847-7. INIST:28735005.