TY - JOUR L1 - http://www.czasopisma.pan.pl/Content/83710/PDF/14_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/83710 PY - 2013 IS - No 2 EP - 417 DO - 10.2478/bpasts-2013-0040 A1 - Wierzcholski, K. VL - 61 DA - 2013 T1 - Unified summation equations and their applications in tribology wear process SP - 405 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/83710 T2 - Bulletin of the Polish Academy of Sciences Technical Sciences ER -