""Spezielle Ebene Kurven"" is a German language book written by Heinrich Wieleitner and published in 1908. The title translates to ""Special Plane Curves"" in English. The book is a detailed study of the properties and characteristics of various plane curves, including conic sections, cycloids, and spirals. It includes numerous diagrams and mathematical equations to aid in the understanding of the concepts presented. The book is aimed at advanced...