7Kobusch M, Bruns T. The new impact force machine at PTB [ C ]//Proc. of XVII IMEKO World Congress. Dubrovnik, Croa- tia: IMEKO, 2003, 263 -267.
8Kobusch M, Link A, Buss A, et al. Comparison of Shock and Sine Force Calibration Methods [ C ]// Proc. of IMEKO 20th TC3, 3rd TC16 and 1st TC22 international conference. Merida, Mexico: IMEKO, 2007.
9Thomas Bruns, Leonard Klaus, Michael Mttller, The 250 Kilo- newton Primary Shock Force Calibration Devic at PTB [ C ]// Proc. IMEKO 2010 TC3, TC5 and TC22 Joint Conference. Pat- taya, Thailand: IMEKO, 2010.
10Bartoli C. Traceable dynamic measurement of mechanical quan- tities: Objectives and first results of the European Project [ C ]/! Proc. of IMEKO World Congress. Busan, Korea: IME- KO, 2012.
