In September 2012 an article about the effects of underground cabling and marking of power lines on the West-Pannonian Great Bustard Otis tarda population was published in the scientific journal Bird Conservation International, volume 22, issue 03.
Citation: Raab, R., Schütz, C., Spakovszky, P., Julius E. and Schulze, C. H. (2012). Underground cabling and marking of power lines: conservation measures rapidly reduced mortality of West-Pannonian Great Bustards Otis tarda. Bird Conservation International, 22, pp 299-306 doi:10.1017/S0959270911000463
Bird Conservation International im September 2012 (pdf, 684 KB; http://journals.cambridge.org)