I would like to know if anyone has an electronic copy of the following paper:



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> **"Holmgren, E.: Über Systeme von linearen partiellen Differentialgleichungen. Översigt Vetensk. Akad. Handlingar 58, 91–105 (1901)"**
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In my search, the best result I found was the (possible) statement of the main result of this article which can be found in the following article: [https://people.kth.se/~haakanh/publications/Hed-MZ2.pdf](https://people.kth.se/%7Ehaakanh/publications/Hed-MZ2.pdf). More precisely,


**Theorem (Holmgren)** Suppose $I$ is a real-analytic nontrivial arc of $\partial \Omega$. Then if $u$ is smooth on a planar neighbohood $\mathcal{O}$ of $I$ and $\Delta^N u=0$ holds on $\mathcal{O} \cap \Omega$ with $\partial\_{n}^{j-1}|\_I=0$ for $j=1, \dots, 2N$, then $u(z)=0$ on $\mathcal{O} \cap \Omega$, provided that the open set $\mathcal{O} \cap \Omega$ is connected.


Any information is welcome, for example, if this article is published in a book.



Looking for an electronic copy of Holmgren's old paper
The full text of the article can be found scanned [here](https://www.biodiversitylibrary.org/page/32299061#page/103/mode/1up).


