@article{Chetvertakova2012pedigreepeculiarities,
author={Chetvertakova, E.V.},
title={PEDIGREEPECULIARITIES OF BULL SIRESBIOTECHNOLOGICALSPERM PARAMETERSINYEAR SEASONS},
journal={Bulletin of KSAU},
publisher={Krasnoyarsk State Agrarian University},
year={2012},
pages={127-133},
volume={},
issue={10},
}