by Daya, D.D.N.B., Demirev, P., Eriksson, J., Hallén, A., Håkansson, P., Johnson, R.E., Kopniczky, J., Papaléo, R.M., Reimann, C.T., Rottler, J., Sundqvist, B.U.R.
Published in Radiation measurements (1997)

by Ariyaratne, T.R., Daya, D.D.N.B., Häkansson, P., Sundqvist, B.U.R.
Published in International journal of mass spectrometry and ion processes (1996)