- document
- Konter, J.L.M. (author) report 1982
- document
- Konter, J.L.M. (author) report 1981
- document
- Konter, J.L.M. (author) report 1981
- document
- Konter, J.L.M. (author) report 1981
- document
- Konter, J.L.M. (author) report 1981
- document
- Konter, J.L.M. (author) report 1980
- document
- Konter, J.L.M. (author) report 1980
- document
- Konter, J.L.M. (author) report 1977
- document
- Konter, J.L.M. (author) report 1976