doi:10.1016/0012-365X(92)90616-N
Copyright © 1992 Published by Elsevier Science B.V. All rights reserved.
Unsolved problems presented at the Julius Petersen Graph Theory Conference
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Jørgen Bang-Jensen and Bjarne Toft
Department of Mathematics and Computer Science, Odense University, DK-5230 Odense M, Denmark
Received 1 November 1990.
Available online 9 April 2002.