• A structural duality for path-decompositions into parts of small radius (S. Albrechtsen, R. Diestel, A. Elm, E. Fluck, R. Jacobs, P. Knappe and P. Wollan), preprint 2023; ArXiv
• A Menger-type theorem for two induced paths (S. Albrechtsen, T. Huynh, R. Jacobs, P. Knappe and P. Wollan), preprint 2023; ArXiv
• A grid theorem for strong immersions of walls (R. Diestel, R. Jacobs, P. Knappe and P. Wollan), preprint 2023; ArXiv
• The immersion-minimal infinitely edge-connected graph (P. Knappe and J. Kurkofka), Journal of Combinatorial Theory B 164 (2024), 492-516; ArXiv
• Canonical graph decompositions via coverings (R. Diestel, R. Jacobs, P. Knappe and J. Kurkofka), preprint 2022; ArXiv
• Agile Sets in Graphs (C. Elbracht, J. Kneip, and M. Teegen), preprint 2021; ArXiv
• Edge-connectivity and tree-structure in finite and infinite graphs (C. Elbracht, J. Kurkofka and M. Teegen), preprint 2020; ArXiv
• Greedoids from flames (A. Joó), Journal of Graph Theory 98(1) (2021), 49-56; ArXiv
• The Farey graph is uniquely determined by its connectivity (J. Kurkofka), JCTB 151 (2021), 223-234; ArXiv
• Every infinitely edge-connected graph contains the Farey graph or T_{\aleph_0}*t as a minor (J. Kurkofka), Mathematische Annalen 382 (2022), 1881-1900; ArXiv
• A note on minor antichains of uncountable graphs (M. Pitz), J. Graph Theory (2022); ArXiv.
• Proof of Halin's normal spanning tree conjecture (M. Pitz), Israel J. Math. 246 (2021), 353-370 ; ArXiv.
• All graphs have tree-decompositions displaying their topological ends (J. Carmesin), Combinatorica 39 (2019), 545–596; PDF
• Constructing tree-decompositions that display all topological ends (M. Pitz), Combinatorica 42(5) (2022), 763-769; ArXiv.
• Circuits through prescribed edges (P. Knappe and M. Pitz), J. Graph Theory 93(4) (2020) 470-482; ArXiv
• A short derivation of the structure theorem for graphs with excluded topological minors (J. Erde and D. Weißauer), SIAM J. Discrete Math., 33, 1654-1661; ArXiv
• In absence of long chordless cycles, large tree-width becomes a local phenomenon (D. Weißauer), JCTB 139 (2019), 342-352; ArXiv
• Algebraically grid-like graphs have large tree-width (D. Weißauer), Electronic J. Comb. 26 (2019), #P1.15; ArXiv
• Directed path-decompositions (J. Erde), SIAM Journal on Discrete Mathematics 34(1) (2020), 415-430; ArXiv
• A unified treatment of linked and lean tree-decompositions (J. Erde), JCTB 130 (2018), 114-143; ArXiv
• On the block number of graphs (D. Weißauer), SIAM J. Discret.Math. 33 (2019), 346-357; ArXiv
• Canonical tree-decompositions of a graph that display its k-blocks (J. Carmesin and P. Gollin), JCTB 122 (2017), 1-20; ArXiv
• Ends and tangles (R. Diestel), Abhandlungen Math. Sem. Univ. Hamburg 87 (2017), 223–244; PDF
• A short proof that every finite graph has a tree-decomposition displaying its tangles (J. Carmesin), European J. Combin. 58 (2016), 61–65; PDF
• Refining a tree-decomposition which distinguishes tangles (J. Erde), SIAM Journal on Discrete Mathematics 31 (2017), 1529–1551; ArXiv
• Bounding connected tree-width (M. Hamann and D. Weißauer), SIAM Journal on Discrete Mathematics 30 (2016), 1391–1400; PDF
• Connected tree-width (R. Diestel and M. Müller), Combinatorica 38 (2018), 381-398; PDF
• Linkages in large graphs (J. Fröhlich, K. Kawarabayashi, T. Müller, J. Pott and P. Wollan), Limit structures and ubiquity in finite and infinite graphs (2015), 155; PDF
• k-Blocks: a connectivity invariant for graphs (J. Carmesin, R. Diestel, M. Hamann and F. Hundertmark), SIDMA 28 (2014), 1876-1891; PDF
• Canonical tree-decompositions of finite graphs I. Existence and algorithms (J. Carmesin, R. Diestel, M. Hamann and F. Hundertmark), JCTB 116 (2016), 1–24; PDF
• Canonical tree-decompositions of finite graphs II. Essential parts (J. Carmesin, R. Diestel, M. Hamann and F. Hundertmark), JCTB 118 (2016), 268–283; PDF
• Connectivity and tree-structure in finite graphs (J. Carmesin, R. Diestel, F. Hundertmark and M. Stein), Combinatorica 34 (2014), 1–35; PDF
• The Erdös-Pósa property for clique minors in highly connected graphs (Reinhard Diestel, Ken-ichi Kawarabayashi and Paul Wollan), J. Combin. Theory (Series B) 102 (2012), 454-469; PDF
• On the excluded minor structure theorem for graphs of large tree-width (Reinhard Diestel, Ken-ichi Kawarabayashi, Theo Müller and Paul Wollan), J. Combin. Theory (Series B) 102 (2012), 1189-1210; PDF
• Linear connectivity forces large complete bipartite minors: An alternative approach (Jan-Oliver Fröhlich and Theo Müller), J. Combin. Theory (Series B), 101 (2011), 502–508; ArXiv
• Graph minor hierarchies (R. Diestel and D. Kühn), Discrete Applied Mathematics 145 (2005), 167-182; PDF
• Dense minors in graphs of large girth (R. Diestel and C. Rempel), Combinatorica 25 (2005), 111-116; PDF
• Two short proofs concerning tree-decompositions (R. Diestel and P. Bellenbaum), Combinatoric, Probability and Computing 11 (2002), 1-7; PDF
• Highly connected sets and the excluded grid theorem (R. Diestel, K.Yu. Gorbunov, T.R. Jensen and C. Thomassen), J. Combin. Theory (Series B) 75 (1999), 61-73; DVI
• Graph Minors I: a short proof of the pathwidth theorem (R. Diestel), Combinatorics, Probability and Computing 4 (1995), 27-30; DVI (A better exposition with figures is available here in PDF - an excerpt from the chapter on graph minors in Graph Theory, 1st ed'n.)

Some theses in the area:

• Tree-structure in separation systems and infinitary combinatorics (J. Erde), Habilitationsschrift, Hamburg 2019; PDF
• On Tangles and Trees (D. Weißauer), PhD dissertation, Hamburg 2018; PDF
• Tangles determined by majority vote (C. Elbracht), MSc dissertation, Hamburg 2017; PDF
• Characteristics of profiles (Ph. Eberenz), MSc dissertation, Hamburg 2015; PDF
• Tree-decomposition in finite and infinite graphs (J. Carmesin), PhD dissertation, Hamburg 2015; PDF
• Limit structures and ubiquity in finite and infinite graphs (J. Pott), PhD dissertation, Hamburg 2015; PDF
• Linkages in Large Graphs and Matroid Union (J.O. Fröhlich), PhD dissertation, Hamburg 2014; PDF
• The excluded minor structure theorem, and linkages in large graphs of bounded tree-width (T. Müller), PhD dissertation, Hamburg 2014; PDF
• Polishing tree-decompositions to bring out the k-blocks (P. Gollin), MSc dissertation, Hamburg 2014; PDF
• The tree-like connectivity structure of finite graphs and matroids (F. Hundertmark), PhD dissertation, Hamburg 2013; PDF
• Erzwingung von Teilstrukturen in Graphen durch globale Parameter (C. Rempel), PhD dissertation, Hamburg 2001; PDF
• Schlanke Baumzerlegungen von Graphen (P. Bellenbaum), Diplomarbeit, Hamburg 2000; PDF