A survey of infill systems, products and companies

Netherlands and Germany Fig. 7.1 Matura lower system. Drawing courtesy of Infill Systems BV https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203056769/04ef4a24-cb08-4b89-8868-68a39cc0719a/content/fig7_1.tif"/>