1. Some recent application of RPUM in Ltaly and Japan/Maurizio Siepi(Technological Department c/o SOILMEC-TREVI Group, Cesena,Italy)
2. Advantages, ground improvement effects of RPUM/Enrico Maria Pizzarotti(Civil Eng. C/o S.IN.C. Servizi di Ingegneria Civile S.r.l.,Milan,Italy)