R.  Reitsma and Marshall, B., ?TeachEngineering: K-12 Teacher Use Study?, Special Workshop on TeachEngineering/GK-12 Integration. Boulder, CO., 2009.

S.  Kaza, Xu, J., Marshall, B., and Chen, H., ?Topological Analysis of Criminal Activity Networks: Enhancing Transportation Security?, IEEE Transactions on Intelligent Transportation Systems, vol. 10, no. 1, pp. 83 - 91, 2009.