Testing hardened concrete - Part 7: Density of hardened concrete; German version EN 12390-7:2000, Corrigenda to DIN EN 12390-7:2001-02; German version EN 12390-7:2000/AC:2004— 2 стр.
German construction contract procedures - Part C: General technical specifications for building works - Construction works for traffic lines - top layers with hydraulic binders— 21 стр.