Do helmets reduce fatalities or merely alter the patterns of death?

von Shealy, Jasper E. (Autor), ... Johnson, Robert J. (Autor), Ettlinger, Carl F. (Autor)
Erschienen in The engineering of sport 6. Volume 3: Developments for innovations : Proceedings of the ISEA 2006 - Munich, Germany, New York (N.Y.): Springer (Verlag), 2006, S. 163-167, Lit.

A method to help reduce the risk of serious knee sprains incurred in alpine skiing

von Ettlinger, Carl F. (Autor), ... Johnson, Robert J. (Autor), Shealy, Jasper E. (Autor)
Erschienen in The American journal of sports medicine, 23 (1995), 5, S. 531-537, Lit.

Downhill skiing injuries in children

von Blitzer, Charles M. (Autor), ... Johnson, Robert J. (Autor), Ettlinger, Carl F. (Autor), Aggeborn, Kristina (Autor)
Erschienen in The American journal of sports medicine, 12 (1984), 2, S. 142-147, Lit.

The in-boot fracture

von Shealy, Jasper E. (Autor), ... Ettlinger, Carl F. (Autor), Mote, C. Daniel (Hrsg.), Johnson, Robert J. (Hrsg.)
Erschienen in Skiing trauma and safety: Sixth International Symposium, Philadelphia (Penn.): American Society for Testing and Materials (Verlag), 1987, S. 113-126, Lit.

Trends in skiing injuries

von Johnson, Robert J. (Autor), ... Ettlinger, Carl F. (Autor), Campbell, Robert J. (Autor), Pope, Malcolm H. (Autor)
Erschienen in The American journal of sports medicine, 8 (1980), 2, S. 106-113, Lit.

Downhill skiing injuries

von Johnson, Robert J. (Autor), ... Bahniuk, Eugene (Autor), Ettlinger, Carl F. (Autor), Mote, C.D. (Autor), Shealy, Jasper E. (Autor)
Erschienen in The physician and sportsmedicine, 15 (1987), 12, S. 107-114, Lit.