A Schultz

Use of lumbar trunk muscles in isometric performance of mechanically complex standing tasks

A Schultz, K Haderspeck, D Warwick, 1983, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

Maximum voluntary strengths of male adults in some lifting, pushing and pulling activities.

A Schultz, D Warwick, G Novak, 1980, Ergonomics.