1. Lewandowski JL (1997) Materials for foundry molds. AKAPIT, Cracow (in Polish)
2. (2018) OSHA’s respirable crystalline silica standard for general industry and maritime
3. Goovaerts L, Veys Y, Meulcpas P, Vercaemst P, Dijkmans R (2001) Beste beschikbare technicen voor de gieterijen, Vito
4. Dawson M. Silica sand: foundry requirements and classification. Foundry cast syst & casting methods Cast Met Serv LDT,
https://www.academia.edu/19130829/SILICA_SAND_FOUNDRY_REQUIREMENS_AND_CLASSIFICATION
, Access 09.11.9019
5. Brown J (2000) Foseco ferrous foundryman’s handbook, 11th edn. Elsevier/Foseco International, Woburn