@article{articled6dbf2ff,
title   = {Reasoning about shadows in a mobile robot environment},
author = {Pereira, Valquiria Fenelon and Santos, Paulo Eduardo and Dee, Hannah Mary and Cozman, Fabio Gagliardi},
year = {2013},
doi = {10.1007/s10489-012-0385-5},
journal   = {Applied Intelligence}
}