@ARTICLE{
author={Ostojic Sergej M,Calleja-Gonzalez Julio,Jakovljevic Djordje G,Vucetic V,Ahumada F},
year={2010},
title={Ultra short-term heart rate recovery in athletes of different sports},
journal={MEDICINA DELLO SPORT},
volume={63},
number={2},
pages={145-152},
document_type={Article},
}