. . . . . . . . . . . . "graphic: Amt für Denkmalpflege und Archäologie Zug, E. Gross & G. Schaeren; data basis: Stuttgarter Datenbank and S. van Willigen, SNM Zurich; measurement values for the Tisenjoch axe blade: ARTOLI ET AL.; 2017, 5 table 1."@de . "Results of the trace-element analysis of the axe blades given in percent by weight. Upper part: results of the trace-element analysis of Zug-Riedmatt and all metallurgically similar flanged copper axes from the late 4th to 3rd millennium BC; middle: flanged axes displaying different traits; bottom part: flat axes from a chronological horizon, presumed to be before 3500 calBC . “tr.” small traces \ndetected."@de . . . . "Results of the trace-element analysis of the axe blades"@de . . .