http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Operations research in production planning and control
proceedings of a joint German/US conference, Hagen, Germany, June 25-26, 1992 under the auspices of Deutsche Gesellschaft fur Operations Research (DGOR), Operations Research Society of America (ORSA)
Deutsche Gesellschaft für Operations Research
Gunter Fandel, Thomas Gulledge, Albert Jones (eds.).
Περιλαμβάνει βιβλιογραφικές παραπομπές και ευρετήριο.