Rychlik, M., Stankiewicz, W. and Morzyński, M. 2008. Applications of 3D PCA method for extraction of mean shape and geometrical features of biological objects set. Mathematical Modelling and Analysis. 13, 3 (Sep. 2008), 413-420. DOI:https://doi.org/10.3846/1392-6292.2008.13.413-420.