• Ubiquity in graphs III: Ubiquity of locally finite graphs with extensive tree-decompositions (N. Bowler, C. Elbracht, J. Erde, P. Gollin, K. Heuer, M. Pitz, M. Teegen), preprint 2020; ArXiv
• Ubiquity and the Farey graph (J. Kurkofka), European J. Combin., 95 (2021), 103326; ArXiv
• Ubiquity in graphs II: Ubiquity of graphs with nowhere-linear end structure (N. Bowler, C. Elbracht, J. Erde, P. Gollin, K. Heuer, M. Pitz, M. Teegen), Journal of Graph Theory 103(3) (2023), 564-598; ArXiv
• Ubiquity in graphs I: Topological ubiquity of trees (N. Bowler, C. Elbracht, J. Erde, P. Gollin, K. Heuer, M. Pitz, M. Teegen), JCTB 157 (2022), 70-95; ArXiv
• Edge-disjoint double rays in infinite graphs: a Halin type result (N. Bowler, J. Carmesin, J. Pott), JCTB 111 (2015), 1-16; ArXiv
• Classes of locally finite ubiquitous graphs (Th. Andreae), JCTB 103 (2013), 274-290; PDF

Theses:

• Ubiquity, hamiltonicity and dijoins in graphs (K.M. Heuer), Habilitationsschrift, Hamburg 2022; PDF
• Tree-structure in separation systems and infinitary combinatorics (J. Erde), Habilitationsschrift, Hamburg 2019; PDF
• Limit structures and ubiquity in finite and infinite graphs (J. Pott), PhD dissertation, Hamburg 2015; PDF