@ARTICLE{
author={Nemes Zsolt,Perdisic Predrag,Szabara Laszlo,Gaspardy Andras},
year={2012},
title={Heterosis in reproductive traits estimated from an upgrading breeding program. 2. "Days open" and pregnancy rate},
journal={MAGYAR ALLATORVOSOK LAPJA},
volume={134},
number={8},
pages={451-458},
document_type={Article},
}