@ARTICLE{Napieraj_Aneta_Method_2016,
 author={Napieraj, Aneta and Snopkowski, Ryszard and Sukiennik, Marta},
 number={No 4},
 journal={Archives of Mining Sciences},
 howpublished={online},
 year={2016},
 publisher={Committee of Mining PAS},
 title={Method of the Assessment of the Influence of Longwall Effective Working Time Onto Obtained Mining Output},
 URL={http://www.journals.pan.pl/Content/105550/PDF/10267-Volume61_Issue4-16_paper.pdf},
 doi={10.1515/amsc-2016-0064},
}