by Shuler, R.L., De Marco, R.A., Berry, A.D.
Published in Inorganica Chimica Acta (01.06.1984)

by Walker, N, Fox, W.B, De Marco, R.A, Moniz, W.B
Published in Journal of magnetic resonance (1969) (1979)

by Kovacina, T.A., De Marco, R.A., Fox, W.B., Young, D.E., Anderson, L.R.
Published in Inorganic & nuclear chemistry letters (01.01.1974)