J. Gärtner:
"Conflicts Between Employee Preferences and Ergonomic Recommendations in Shift Scheduling: Regulation based on consent is not sufficient";
Revista de Saúde Pública (Journal of Public Health), 38 (2004), Supplement; 65 - 71.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04968533