by Renschler, C.L., Gill, J.T., Walko, R.J., Ashley, C.S., Shepodd, T.J., Reed, S.T., Malone, G.M., Leonard, L.E., Ellefson, R.E., Clough, R.L.
Published in Radiation physics and chemistry (Oxford, England : 1993) (01.12.1994)

by Walko, R. J., Rochau, G. E.
Published in IEEE transactions on nuclear science (01.01.1981)

by Walko, R.J.
Published in Surface science (1978)

by Walko, R. J., Brainard, J. P., Riedel, A. A., O'Hagan, J. B., Bacon, F. M.
Published in IEEE transactions on nuclear science (01.01.1983)