Yasoshima, H.,Shinozaki Tohru,Umemoto Munehiro,Kurabayashi kiyoshi,Itatani Toshiro,Kojima Masaki,Kobayashi Toshimitsu ' Study on Concrete Using Several Drying Shrinkage Reducing Agents.'  MATERIALS AND CONSTRUCTION,SUMMARIES OF TECHNICAL OF ANNUAL MEETING ARCHITECTURAL INSTITUTE OF JAPAN,2000,  pp.641-642