@misc{Gromadzka-Ostrowska_J._Progesterone_1984,
 author={Gromadzka-Ostrowska, J. and Szylarska-Góźdź, E.},
 volume={29},
 number={20},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1984},
 language={eng ; Sum. eng ; pol.},
 type={Text},
 title={Progesterone concentration and their seasonal changes during the estrus cycle of chinchilla},
 URL={http://rcin.org.pl/Content/11092/PDF/BI002_2613_Cz-40-2_Acta-T29-nr20-251-258_o.pdf},
 keywords={Chinchilla laniger, estrous cycle, progesterone, seasonal changes, sezonowa zmienność, progesteron, cykl estralny},
}