Symposium on Reliability in Distributed Software and Database Systems,Pittsburgh,1981 Symposium on Reliability in Distributed Software and Database Systems(2nd:1982:Pittsburgh,Pa.) Symposium on Reliability in Distributed Software and Database Systems(4th:1984:Silver Spring,Md.) Symposium on Reliability in Distributed Software and Database Systems(5th:1986:Los Angeles,Calif) Symposium on Reliability in Distributed Software and Database Systems(3rd:1983:Clearwatre Beach,Fla. Symposium on Reliability in Distributed Software and Database Systems(3rd:1983:Clearwatre Beach,Fla.) Symposium on plastic-insulated mains-cable systems