@book{20635, author = {Gass, Saul I. and Assad, Arjang A. and SpringerLink (Online service)}, title = {An Annotated Timeline of Operations Research: An Informal History}, publisher = {Springer Science + Business Media, Inc.,}, year = {2005.}, address = {Boston, MA :}, url = {http://dx.doi.org/10.1007/b105998} }