1. Global Market Insights, http://www.gminsights.com/industry-analysis/industrial-safety-footwear-market, last accessed 2018/10/07.
2. Allied Market Research, https://www.alliedmarketresearch.com/industrial-protective-footwear-market, last accessed 2019/01/31.
3. Chaussures de sécurité, de protection et de travail Safety shoes, protective footwear;Goldcher;EMC Podologie,2005
4. Numerical Simulation of Quasi-Static Compression Behavior of the Toe Cap Component for Safety Footwear;Costa;Int. Journal of Computer Theory and Engineering,2014
5. Project S3 – Safety Slim Shoe, FCOMP-01-0202-FEDER-018458