@misc{Sielewiesiuk_Jan_Positive,
 author={Sielewiesiuk, Jan and Łopaciuk, Agata},
 howpublished={online},
 publisher={Uniwersytet Marii Curie-Skłodowskiej (Lublin)},
 language={eng},
 type={artykuł},
 title={Positive and negative feedback loops coupled by common transcription activator and repressor},
 keywords={circadian rhythms, mathematical model, coupled loops, oscillations},
}