00547nam a2200193Ia 4500 20260212082016.0 200229s9999 xx 000 0 und d EGER RA 781 .C3 Carron, Albert V. The psychology of physical activity Albert V. Carron Boston: McGraw-Hill, 2003 x, 274 Exercise-psychological aspects Exercise-psychological aspects Heather A. Hausenblas Paul A. Estabrooks BK 581987 581987