The Exodus Equation: Study Shows Russian Math Geniuses Excelling In West
▻http://www.rferl.org/content/russian-math-geniuses-excelling-in-west/27507561.html
The massive exodus of scientists since the 1991 collapse of the Soviet Union is a known phenomenon that has greatly affected the field of mathematics.
(...) Between 1992 and 2008, the study says, the average Russian migrant published 20 more papers than the average American mathematician, and those papers received 143 more citations.