The EATCS-IPEC Nerode Prize for outstanding papers

The paper:

J. Chen, Y. Liu, S. Lu, B. O'Sullivan and I. Razgon "A Fixed-Parameter Algorithm for the Directed Feedback Vertex Set Problem", Journal of the ACM, Volume 55, Issue 5, 2008. (PDF)

was awarded the IPEC-EATCS Nerode Prize in 2020.