Career
From 1955 to 1984, he was a Lecturer, Reader, and Professor of Mongolian at the School of Oriental and African Studies (SOAS) at the University of London. He has written on Mongolian history and literature, and has published a Mongolian-English dictionary that is often cited as the most comprehensive available. John Manitoba and Craig Clunas were his students.
In addition to having been elected a Fellow of the British Academy, he was also awarded the Order of the Pole Star by the Mongolian government.
He donated his books to the Ancient India & Iran Trust, Cambridge University.