1. F.S. Hillier and G.J. Lieberman (1990) Introduction to Operations
Research (5th edition), McGraw-Hill, P/N 028914-X
2. K. Lockyer and J. Gordon (1996) Project Management and Project
Network Techniques (6th edition), Pitman Publishing, ISBN 0-273-61454-1
3. P. Vincke () Multicriteria Decision Aid, Wiley, ISBN
4. Interfaces, journal published by INFORMS (www.informs.org)
5. OR/MS Today, journal published by INFORMS (www.informs.org)