Linkit
https://www.leipurin.com/fi/ota-yhteytta
https://www.leipurin.com/fi/koneet/spiraalijärjestelmät
https://betoni.com/wp-content/uploads/2015/09/BET1004_46-48.pdf
https://www.sciencedirect.com/topics/materials-science/alkali-silica-reaction
https://www.sciencedirect.com/science/article/pii/S2212609016301157