Ma, Y., Mattiolo, D., Steffen, E., &; Wolf, I. H. (2024). Edge-Connectivity and Pairwise Disjoint Perfect Matchings in Regular Graphs. Combinatorica, 44, 429–440.https://doi.org/10.1007/s00493-023-00078-9 
LibreCat: /record/49905
DOI: 10.1007/s00493-023-00078-9

Ma, Y., Mattiolo, D., Steffen, E., &; Wolf, I. H. (2023). Sets of r-graphs that color all r-graphs. In arXiv:2305.08619.
LibreCat: /record/44859
arXiv: 2305.08619

Ma, Y., Mattiolo, D., Steffen, E., &; Wolf, I. H. (2023). Pairwise Disjoint Perfect Matchings in r-Edge-Connected r-Regular Graphs. SIAM Journal on Discrete Mathematics, 37(3), 1548–1565.https://doi.org/10.1137/22m1500654 
LibreCat: /record/46256
DOI: 10.1137/22m1500654

Steffen, E., &; Wolf, I. H. (2023). Bounds for the chromatic index of signed multigraphs. Discrete Applied Mathematics, 337, 185–189.https://doi.org/10.1016/j.dam.2023.05.008 
LibreCat: /record/51351
DOI: 10.1016/j.dam.2023.05.008

Steffen, E., &; Wolf, I. H. (2023). Rotation r-graphs. Discrete Mathematics, Article 113457.https://doi.org/10.1016/j.disc.2023.113457 
LibreCat: /record/51357
DOI: 10.1016/j.disc.2023.113457

Steffen, E., &; Wolf, I. H. (2022). Even Factors in Edge-Chromatic-Critical Graphs with a Small Number of Divalent Vertices. Graphs and Combinatorics, 38(3), Article 104.https://doi.org/10.1007/s00373-022-02506-x 
LibreCat: /record/31543
DOI: 10.1007/s00373-022-02506-x
arXiv: 2109.11447