Bixby, Robert E.2018-06-182018-06-181987-10Bixby, Robert E.. "Notes on Combinatorial Optimization." (1987) <a href="https://hdl.handle.net/1911/101631">https://hdl.handle.net/1911/101631</a>.https://hdl.handle.net/1911/10163170 ppengNotes on Combinatorial OptimizationTechnical reportTR87-21