@conference { euro,
author = {    Langevin, Philippe    },
title  = {   covring radius of RM(1,9) into RM(3,9)  },
month  = {    july  },
organization = {  Eurocode 90  },
address = {  Udine, Italy  },
year = {1990},
rang = {A},
url  =  { },
}