Ivan Tafteberg Jakobsen

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On critical graphs with chromatic index 4

Ivan Tafteberg Jakobsen, 1974, Discret. Math..

On Certain Homomorphism Properties of Graphs I.

Ivan Tafteberg Jakobsen, 1972 .

Some remarks on the chromatic index of a graph

Ivan Tafteberg Jakobsen, 1973 .

On certain homomorphism-properties of graphs with applications to the conjecture of hadwiger

Ivan Tafteberg Jakobsen, 1971 .