00291nam a2200109Ia 4500008004100000082001100041082000800052245007200060245002000132260002000152300000900172231017s9999    xx            000 0 und d  a624.37  bKOY 0aIdentifying causes for distress patterns in prestressed concrete PC 0cYilmaz Koyuncu   bYilmaz Koyuncu   c30cm