@article{Assuncao2006,
author = {Assuncao, R.M. and Neves, M.C. and Camara, G. and Da Costa Freitas, C.},
title= {Efficient regionalisation techniques for socioeconomic geographical units using minimum spanning trees},
year = {2006},
doi = {10.1080/13658810600665111},
journal = {International Journal of Geographical Information Science},
volume = {20},
number = {7},
pages = {797--811},
}