by Grover, J., Juncosa, R.D., Stoffel, N., Boysel, M., Brooks, A.I., McLoughlin, M.P., Robbins, D.W.
Published in IEEE sensors journal (01.05.2008)

by Haszeldine, R.N., Parish, R.V., Robbins, D.W.
Published in Journal of organometallic chemistry (01.07.1970)