TY - JOUR A1 - Czichos, Horst A1 - Mølgaard, J. T1 - Towards a General Theory of Tribological Systems JF - Wear PY - 1977 SN - 0043-1648 VL - 44 SP - 247 EP - 264 PB - Elsevier CY - Amsterdam AN - OPUS4-8733 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -