1. e.g. Glaeser, R.M. (1979) Chapter 16 in Introduction to Analytical Electron Microscopy, Eds Hren, J.J., Goldstein, J.I. and Joy, D.C., Plenum, New York
2. Vesely, D. (1984) Ultramicroscopy 14, 279
3. Henderson, R. and Glaeser, R. M. (1985) Ultramicroscopy 16, 139
4. Wade, R.H. (1984) Ultramicroscopy 14, 265
5. Knapek, E., Formanek, H., Lefranc, G. and Dietrich, I. (1984) Ultramicroscopy 14, 253