Krommidas Χ., Galanis Ε., Papaioannou Α., Zourbanos Ν., Tzioumakis Γ. and Digelidis Ν. 2015. Objectively Measured Physical Activity Levels And Body Mass Index οf Secondary School Students In Central Greece: Differences Between Sex And Age. Inquiries in Physical Education and Sport. 13, 1 (Apr. 2015), 42–60.