1. [1] Deutsch, V., Platte, M.: Crack depth gauging with the potential probe method, Castell Publications, Wuppertal, 2003. ISBN 3-934 255-17-5.
2. [2] Zelený, J.: Výroba zápustek a forem. MM průmyslové spektrum SPECIÁL, Duben 2001.
3. [3] Derbas, M., Czán, A.: Renovating intensification of machining nitride layers of tools for volume forming In: TRANSCOM 2011. ISBN 978-80-554-0374-8.
4. [4] Vasilko, K., Pilc, J.: New technological knowledge of the rotary turning tool, Journal of Manufacturing Technology, vol. 13, issue 4, 2013, pp. 571-575. ISSN 1213-2489.
5. [5] Šajgalík, M., Czan, A.: Studying of processes in cutting zone by non-destructive methods, Technological Engineering, vol.8, no.2, 2011, ISSN 1336-5967