Roland Naul

Sport and physical education in Germany

2005

Olympic Education

2018

Willibald Gebhardt

1999

Turnen, Spiel und Sport in Schule und Verein

2000

Turnen and sport

1991

Physical activity and active lifestyle of children and youth

1998

Obesity in Europe

2007

Kulturen des Jugendsports

2009

Die Männer um Willibald Gebhardt

2002

Contemporary studies in the national Olympic games movement

1997

Contemporary Studies in the National Olympic Games Movement (Sport Sciences International)

1997