On Tycho's Island Tycho Brahe and his Assistants, 1570–1601 Christianson John Robert Heftet / 2009 / Engelsk
On Tycho's Island Tycho Brahe and his Assistants, 1570–1601 Christianson John Robert Innbundet / 1999 / Engelsk
On Tycho's Island Tycho Brahe, Science, and Culture in the Sixteenth Century Christianson John Robert Heftet / 2002 / Engelsk
