1. Cisco, White Paper: Understanding Multiple Spanning Tree Protocol (802.1s), Document ID: 24248, April 2007, Accessed October 2013. .
2. IEEE Standard 802.1S, Virtual Bridged Local Area Networks – Amendment 3: Multiple Spanning Trees, 2002.
3. IEEE Standard 802.1Q, Virtual LANs, 2006.
4. Theory of Multiobjective Optimization;Sawaragi,1985
5. Constraint-based Local Search;Hentenryck,2005