Franz Viehböck and Ulrich Walter, have which occupation in common?
Franz Viehböck Franz Artur Viehböck (born August 24, 1960 in Vienna) is an Austrian electrical engineer, and was Austria's first cosmonaut. He was titulated "„Austronaut“" by his country's media. He visited the Mir space station in 1991 aboard Soyuz TM-13, returning aboard Soyuz TM-12 after spending just over a week in space.
Walter Borho Walter Borho (born 17 December 1945, in Hamburg) is a German mathematician, who works on algebra and number theory.