1. in press;Werner;Chem,1980
2. In Ngo Teil in press;Werner;aUg Chem Naturforsch Chem Ber Chem Ber Chem Ber Chem Chem mt Ed Engl,1979
3. in press;Werner;Chem Ber
4. in press unpublished results;Werner;Chem Ber Chem Chem mt Ed Engl,1979
5. HELMUT;Werner;Chim Acta,1977