@misc{Zhentang_Liu_The,
 author={Zhentang, Liu and Xueqiu, He and Enyuan, Wang and Linming, Dou},
 howpublished={online},
 publisher={Wydawnictwo Politechniki Śląskiej},
 language={eng},
 title={The fractal rule of AE during the deformation and fracture of coal or rock},
 type={artykuł},
 keywords={Politechnika Śląska, górnictwo, przemysł górniczy, technika górnicza},
}