They were jointly awarded a human rights award from the University of Oslo last year for their work.
In 1975 the two were jointly awarded the Regina Medal.
Since no tie-breaking system had been previously decided, it was determined that all four countries be jointly awarded the title.
The prizes were awarded by the members of the society and the directors of the foundation jointly.
Some prizes are awarded jointly with other mathematical organizations.
Degrees at the end of the five-year undergraduate programme will be awarded jointly from both institutions.
It was the first time in a world ski championship that the gold medal was awarded jointly.
If a prize is awarded jointly to two or more laureates the money is split among them.
As part of that committee, he was jointly awarded the 2011 United States Water Prize.
In 1960, he was jointly awarded a benefit with Tattersall, neither playing in the benefit match.