TY  - BOOK
TI  - Papers from the third international discussion conference o-n operational research
CY  - Philadelphia, PA. : Sciences Department
N1  - Contenido: Systemic inactivism in National development plan-ning / Wladimir M. Sachs -- Education and profession in OR -/ Thomas A. Cowan -- The art and science of MESS management- / Russell L. Ackoff -- Proactivism and corporate environme-ntal scanning / Donald J. Kalff
ER  -