1899 – 1953
Bibliografía (10 obras)
Racing tactics
1973
Der Schlüssel zum Leben
1949
A recently discovered substance in the air and its effect on healthy and diseased organisms
1947
Bioklimatik
1946
The beauty of skating
1935
Clouds, wind, and water
1932
Racing tactics in questions and answers
Yacht racing
1930
Beauty of flight
Myom und Altersbild
