A Dual Frequency Feed System for the 20 m Radio Telescope at the Onsala Obervatory
G.Elgered, P.-S.Kildal, J.Flodin, B.Hansson, J.O.Rubiños-López, L.Pettersson, S.Rafaelli, Coautor
Internacional. Proc. of the Antenn 97 Conference Göteborg (1997)
1997