Author

Helmut Sieper

2 books found

Placeholder cover for New results on hashish-specific constituents

New results on hashish-specific constituents

Friedhelm Korte, Helmut Sieper · First published 1965

Placeholder cover for Zur chemischen Klassifizierung von Pflanzen

Zur chemischen Klassifizierung von Pflanzen

Friedhelm Korte, Helmut Sieper · First published 1964