00284nam a2200109Ia 4500008004100000082001300041082000800054245008700062245000800149260000800157300000900165231017s9999 xx 000 0 und d a624.1834 bBSI 0a"Structural use of Concrete, Part 1: Code of Practice for Design and Construction" 0cBSI bBSI c30cm