Sport halls – Halls for gymnastics and games – Part 6: Provisions for installation and anchorage of sporting equipment
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 04/01/2009

Sport halls – Halls for gymnastics and games – Part 6: Provisions for installation and anchorage of sporting equipment
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/2014