Dijkstra's algorithmic work (especially graph algorithms, concurrent algorithms, and distributed algorithms) plays an important role in many areas of computing science. According to Leslie Lamport (2002), Dijkstra "started the field of concurrent and distributed algorithms with his 1965 CACM paper "Solution of a Problem in Concurrent Programming Control", in which he first stated and solved the mutual exclusion problem." As Lamport explains, "that paper is probably why PODC exists (...). It remains to this day the most influential paper in the field. That it did not win a PODC Influential Paper Award reflects an artificial separation between concurrent and distributed algorithms–a separation that has never existed in Dijkstra's work."