In German. It contains the 1:1 pattern for a Relax stunt kite
(and three single line kites, including Martin Lester's Legs).
The Relax is a 3/4 dart with six battens.
Publisher - Falken-Verlag GmbH, Postfach 1120,
D-65521 Niedernhausen/Ts, Germany
ISBN - 3 8068 4513 1