Barnes, Greg Algorithms and Complexity, MPI for Informatics, Max Planck Society;
MPI-I-94-119.pdf (Any fulltext), 11MB
Barnes, G., & Edmonds, J. A.(1994). Time-space lower bounds for directed s-t connectivity on JAG models (MPI-I-94-119). Saarbrücken: Max-Planck-Institut für Informatik.