Siemens, Ellen (von Helmholtz) von, 1864–
Nationality: Undetermined, possibly 
(Germany)
Identities and Authority Control
- pdbooks.info ID: 63285
Ellen (von Helmholtz) von Siemens Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| Anna von Helmholtz: ein Lebensbild in Briefen | 1929 | Editor | |  |  | | | ||