Gliding History
Web Sites Gliding
Web Sites Gliding
Madlen, Nilsson. International Glidingcompetion at Wasserkuppe in 1937, http://histaviation.com/First_international_gliding_competion_1937.html
The Yorkshire Gliding Club. History, www.ygc.co.uk/history.php
Daniel’s Aviation Memorabilia (NSFK), www.danielsww2.com
old books etc. http://www.j2mcl-planeurs.net/ and http://www.scalesoaring.co.uk/VINTAGE/Books/BookCase1.html
you tube with Joan Price's tow from Germany: http://www.youtube.com/watch?v=cEOZsA0sI34