A small team of researchers at Beijing Normal University working with a colleague from Bar-Ilan University has found that researchers who collaborate with other researchers in multiple research areas tend to publish more highly cited papers than do those who generally only work with others in their field. In their paper published in Proceedings of the National Academy of Sciences, the group describes analyzing the authorship of papers published in the journal American Physical Society and what they learned about collaboration and the degree of impact of authorship of papers under different scenarios.