Todesspiele
Karen Rose
Der Fall Schlachter (Stufe 3)
Theo Scherling & Felix Scherling
German Wikibook
Various
Analytical Mechanics of Aerospace Systems
Hanspeter Schaub & John L. Junkins
The Art of Paragliding
Dennis Pagen
Understanding the Sky - A Sport Pilot's Guide to Flying Conditions
Paragliding Pilots Handbook
Papillon Paragliding
Elementary Pilot Training Guide
BHPA