On the concept of the centre of the second curvature and on a generalization of a certain geometrical meaning of v. Lilienthal

Instytut Matematyczny Polskiej Akademii Nauk / Institute of Mathematics / Publishing house / Journals and Serials / Annales Polonici Mathematici / All issues

Stanisław Gołąb Annales Polonici Mathematici 2 (1955), 215-218 DOI: 10.4064/ap-2-2-215-218