The following publications are possibly variants of this publication:
- PTGL: a database for secondary structure-based protein topologiesPatrick May, Annika Kreuchwig, Thomas Steinke, Ina Koch. nar, 38(Database-Issue):326-330, 2010. [doi]
- PTGL: extension to graph-based topologies of cryo-EM data for large protein structuresJan Niclas Wolf, Marcus Keßler, Jörg Ackermann 0001, Ina Koch. bioinformatics, 37(7):1032-1034, 2021. [doi]