@article{articlee16fb04d,
title   = {Counting Cattle in UAV Images: Dealing with Clustered Animals and Animal/Background Contrast Changes},
author = {Barbedo, Jayme Garcia Arnal and Koenigkan, Luciano Vieira and Santos, Patrícia Menezes and Ribeiro, Andrea Roberto Bueno},
year = {2020},
doi = {10.3390/s20072126},
journal   = {Sensors}
}