Labibay
I used to talk to interesting people in Russian. We switched to English now, but the people are still interesting.
Labibay
Jürgen Jost: mathematical structures
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Ivan Yamshchikov
Jürgen Jost is the Director of Max Planck Institute for Mathematics in the Sciences in Leipzig.
https://scholar.google.com/citations?user=hoY8se8AAAAJ