Jónás, Bianka, Andrea Harnos, and Tibor Csörgő. 2018. “Detection of passerines’ Loop Migration Pattern Using Wing Length Measurements”. Acta Zoologica Academiae Scientiarum Hungaricae 64 (4), 383-97. https://doi.org/10.17109/AZH.64.4.383.2018.