Results of many years’ study of Short-toed Eagle biology in the south-western Kopetdag /map/ by Sergey Bukreev are presented in the following article:
• Букреев С.А., 1996 – Материалы по биологии туркестанского змееяда (Circaetus gallicus heptneri; Falconiformes Accipitridae) на юго-западном Копетдаге [Notes on the biology of Circaetus gallicus heptnery in the south-western Kopetdag] // Зоол. журн., т.75, вып.5. – С. 726-735. (Ru).
The work of Sergey Sapelnikov and Petr Vengerov on Short-toed Eagle in the Voronezh State Biosphere Reserve /map/ is presented here thanks to help of Prof. Viktor Belik:
• Сапельников С.Ф., Венгеров П.Д., 2008 – Змееяд в Воронежском заповеднике [Short-toed Eagle in Voronezh Reserve] // Материалы регионального совещания “Проблемы ведения Красной книги”. Липецк: ЛПГУ. – С. 102-107. (Ru).
The Wiley InterScience website database allows to find full texts or abstracts of articles dedicated to Short-toed Eagle. Here are two of 12 articles from the actual search results:
• D.E. BAKALOUDIS, C.G. VLACHOS, G.J. HOLLOWAY, 1998 – Habitat use by Short-toed Eagles Circaetus gallicus and their reptilian prey during the breeding season in Dadia Forest (north-eastern Greece) // Journal of Applied Ecology, Vol. 35, No. 6: 821-828. – 
(En) /map/ – the abstract was mentioned before.
• ANTONIO-ROMÁN MUÑOZ, BERT TOXOPEUS, JAVIER ELORRIAGA, JUAN-MIGUEL GONZALEZ, BEATRIZ YÁÑEZ, 2010 – First record of a communal roost of Short-toed Eagles Circaetus gallicus // Ibis, Vol. 152, No. 1: 173-175. – (En).
MEDRAPTORS – Mediterranean Raptor Migration Network. There is a list of different publications on the site with a new one on migrating Short-toed Eagles. Nicolantonio Agostini, Ugo Mellone, Michele Panuccio, Giuseppe Lucia, Marco Gustin are its co-authors:
• Agostini N., Panuccio M., Lucia G., Liuzzi C., Amato P., Provenza A., Gustin M. & Mellone U., 2009 – Evidence for age-dependent migration strategies in the Short-toed Eagle // British Birds 102(9): 506-508. – (En).
This article (Ru) written by Roald Potapov about Short-toed Eagle in southern Tajikistan /map/ was published for the first time in 1960:
• Потапов Р.Л., 1960 – К биологии орла-змееяда в южном Таджикистане [Notes on biology of the Short-toed Eagle in southern Tajikistan] // Изв. сель.-хоз. и биол. наук АН Тадж. ССР 1, 2: 135-137; and was republished in the Russian Ornithological Journal this year:
• Потапов Р.Л. – К экологии орла-змееяда Circaetus gallicus в южном Таджикистане [Notes on ecology of the Short-toed Eagle Circaetus gallicus in southern Tajikistan] // Русский орнитологический журнал 2009, Том 18, Экспресс-выпуск 518: 1789-1792. (Ru).
Thanks to Maxim Gavrilyuk for the pointing this republication out.
Search results for Short-toed Eagle (Biancone) in some Italian photo galleries are presented here:
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As usual, while veiwing many similar images we can find absolutely new and unusual ones. Sometimes they remind interesting scenes watched by ourselves in nature.
Two new articles (Ru) of Nikolay Berezovikov have been published in the Russian Ornithological Journal. The study region is located in Eastern Kazakhstan /map/:
• Н.Н. Березовиков, А.С. Левин, С.С. Шмыгалёв, 2009 – Змееяд Circaetus gallicus в Восточно-Казахстанской области [Short-toed Eagle Circaetus gallicus in Eastern-Kazakhstan Region] // Рус. орнитол. журн. 2009. Том 18. Экспресс-выпуск № 523: 1915-1917.
• Н.Н. Березовиков, А.С. Левин, 2009 – Змееяд Circaetus gallicus в Балхашской и Алакольской котловинах [Short-toed Eagle Circaetus gallicus in Balkhash and Alakol lake depressions] // Рус. орнитол. журн. 2009. Том 18. Экспресс-выпуск № 523: 1917-1919.