by Souto, N.M.B., Cercas, F.A.B., Dinis, R.Y.M., Silva, J.C.M.
Published in IEEE transactions on communications (01.10.2007)

by Correia, A.M.C., Silva, J.C.M., Souto, N.M.B., Silva, L.A.C., Boal, A.B., Soares, A.B.
Published in IEEE transactions on broadcasting (01.03.2007)