Universität zu Köln

Durst, Sebastian, Geiges, Hansjoerg and Kegel, Marc (2019). Handle homology of manifolds. Topology Appl., 256. S. 113 - 128. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1879-3207

Durst, Sebastian, Geiges, Hansjorg, Gonzalo Perez, Jesus and Kegel, Marc (2020). Parallelisability of 3-manifolds via surgery. Expo. Math., 38 (1). S. 131 - 138. MUNICH: ELSEVIER GMBH. ISSN 1878-0792

Kegel, Marc (2016). Legendrian knots in surgery diagrams and the knot complement problem. PhD thesis, Universität zu Köln.