%0 conference lecture %@ %A Gonin, I.,Jelezov, I.,Kaiser, H.,Singer, W.,Oehring, M.,Priesmeyer, H.G.,Schnieber, R. %D 1998 %J Conf. Instituto Nationale di Fysika Nucleare, Workshop series %N %P %T Hydroforming test of back extruded niobium tube %U %X