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In page Sofya Kovalevskaya:
"In April 1869, following Sofia's and Vladimir's brief stay in Vienna, where she attended lectures in physics at the university, they moved to Heidelberg. Through great efforts, she obtained permission to audit classes with the professors' approval at the University of Heidelberg. There she attended courses in physics and mathematics under such teachers as Hermann von Helmholtz, Gustav Kirchhoff and Robert Bunsen.[1]: 87–89 Vladimir, meanwhile, went on to the University of Jena to pursue a doctorate in palaeontology.[citation needed]
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