@misc{Hołyński_Roman_B._Index_28, author={Hołyński, Roman B.}, volume={2}, number={1}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Milanówek}, journal={Procrustomachia}, howpublished={online}, year={28 II 2017}, publisher={Uncensored Scientists Group ; Roman Hołyński}, language={eng}, title={Index of curtailment – an interesting aspect of wing formula}, type={Text}, URL={http://rcin.org.pl/Content/69237/PDF/WA058_90209_P6868_P.pdf}, keywords={Aves, migration, morphometry, wing-formula}, }