TY - JOUR A1 - Lehtsier, Oleg A1 - Ulshin, Vitaly A1 - Kilymnik, Oleg A1 - Pismenskiy, Alexey PB - The Lublin Branch of the Polish Academy of Sciences L2 - http://journals.pan.pl/Content/92081 PY - 2012 IS - No 4 T1 - Determination the dynamic parameters of the controlled technological processes of coal preparation by using the semi graphical method UR - http://journals.pan.pl/dlibra/publication/edition/92081 T2 - Teka Commission of Motorization and Power Industry in Agriculture ER -