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References
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| 1. |
Y. Egawa, H. Enomoto and A. Saito, “Contractible edges in triangle-free graphs”, Combinatorica, 6:3 (1986), 269–274    |
| 2. |
W. Mader, “Generalizations of critical connectivity of graphs”, Discrete Mathematics, 72:1–3 (1988), 267–283 |
| 3. |
W. Mader, “On-vertex-edge-critically $n$-connected graphs”, Combinatorica, 1 (1981), 385–386 |
| 4. |
K. Menge, “Zur allgemeinen Kurventheory”, Fund. Math., 10 (1927), 96–115 |
