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The top-100 list also includes papers on artificial intelligence (AI), research software and statistical methods. The most-cited papers of the twenty-first century ...

However, a pioneering 2004 paper on experiments with graphene 1 — work that won its authors the Nobel Prize in Physics in 2010 — is also among the twenty-first century’s most-cited.

A quarter of collaborations cover two research topics, while only 12% span three or more topics. The team also examined how successful scientists work with their collaborators. Two metrics of success ...