Development Of Documentation "Bełchatów Field. Study Of The Development Of Deep Deformations Of The Rock Mass In Relation To The Progress Of Mining" And "Field Of Szczerców. Study Of The Development Of Deep Deformations Of The Rock Mass In The Mine Workings Of The Szczerców Field In Relation To The Progress Of Exploitation." For Pge Giek S.A. Bełchatów Brown Coal Mine Branch