You can help expand this article with text translated from the corresponding article in Dutch. (September 2023) Click [show] for important translation instructions.
Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Dutch Wikipedia article at [[:nl:A.S.C. Wallis]]; see its history for attribution.
You may also add the template {{Translated|nl|A.S.C. Wallis}} to the talk page.
^Snellen, Johanna (1926). "Levensbericht van Adèle S.C. Antal von Felsö Gellér-Opzoomer (A.S.C. Wallis) 21 Juli 1856-27 December 1925.". Jaarboek van de Maatschappij der Nederlandse Letterkunde (in Dutch). pp. 114–122.
^van Bork, G. J.; Verkruijsse, P. J., eds. (1985). De Nederlandse en Vlaamse auteurs van middeleeuwen tot heden (in Dutch). Weesp: De Haan. p. 633.
^Tamás, Pál (8 October 2014). "Adéle Opzoomer". www.kozterkep.hu (in Hungarian). Retrieved 30 September 2023.
