1. Aerts JCJH, Eisinger E, Heuvelink GBM, Stewart TJ (2003) Using linear integer programming for multi-site land-use allocation. Geogr Anal 35(2):148–169
2. Altman M (1997) The computational complexity of automated redistricting: is automation the answer? Rutgers Comput Technol Law J 23(1):81–142
3. Altman M (1998) Districting principles and democratic representation. PhD thesis, California Institute of Technology, Pasadena
4. Bozkaya B, Erkut E, Laporte G (2003) A tabu search heuristic and adaptive memory procedure for political districting. Eur J Oper Res 144(1):12–26
5. Caballero-Hernández SI, Ríos-Mercado RZ, López F, Schaeffer E (2007) Empirical evaluation of a metaheuristic for commercial territory design with joint assignment constraints. In: Fernandez JE, Noriega S, Mital A, Butt SE, Fredericks TK (eds) Proceedings of the 12th annual international conference on industrial engineering theory, applications, and practice (IJIE). Cancun, Mexico, pp 422–427. ISBN: 978-0-9654506-3-8