Nonverbal expressions of emotions during sport performances. Do spontaneous nonverbal expressions of head and hand movements characterize emotional situations of performing tennis athletes
Hochschulinterne Forschungsförderung der Deutschen Sporthochschule Köln. I. Helmich, K.C.H. Reinecke. Projektpartner: V. Drewes, N. Neumann, S.T. Cotterill