Items where Author is "Brunk, Richard"
Jump to: 2021 Number of items: 2. 2021Hänni, Henry and Brunk, Richard and Franz, Leander. (2021) An investigation of grinding hardness of some ornamental stones. The Journal of Gemmology, 37 (6). pp. 632-643. Hänni, Henry and Brunk, Richard and Franz, Leander. (2021) Zur Ermittlung der Schleifhärte einiger Schmucksteine. Zeitschrift der Deutschen Gemmologischen Gesellschaft, 70 (1-2). pp. 37-54. |