Karmen Salmič Kovačič, Karmen Salmič Kovačič, ed. Ondina Otta Klasinc (1924–2016): Ob Stoletnici Rojstva. Vol. Zv. 7. Personalities. University of Maribor Press, 2024. Accessed February 28, 2026. https://old.press.um.si/index.php/ump/catalog/book/884.