- document
- Woltgens, E. (author), Prins, B. (author) book 1997
- document
- Prins, S. (author) book 1995
- document
-
Kühnel, R.A. (author), Prins, J.J. (author), Roorda, H.J. (author)University of Technology by the late Professor A.H. van der Veen, about half a century ago, and ever since it has been part of the curriculum for students in mining and mineral engineering. Teaching students to identify minerals by means of reflected-light microscopy has always been a matter of considerable difficulty. However, the introduction...book 1980