| Item Description: | Originally presented as the author's thesis, Heidelberg, 1968. |
|---|---|
| Physical Description: | xii, 156 pages : illustrations (part folded) ; 24 cm. |
| Bibliography: | Includes bibliographical references. |
| Item Description: | Originally presented as the author's thesis, Heidelberg, 1968. |
|---|---|
| Physical Description: | xii, 156 pages : illustrations (part folded) ; 24 cm. |
| Bibliography: | Includes bibliographical references. |