https://www.hcm.uni-bonn.de/events/eventpages/2015/topology-and-geometry-conference-2015/schedule/
Links:
[1] https://www.mpim-bonn.mpg.de/taxonomy/term/39
[2] https://www.mpim-bonn.mpg.de/node/44
[3] https://www.mpim-bonn.mpg.de/node/6133
[4] https://www.mpim-bonn.mpg.de/node/6134/program?page=last
[5] https://www.mpim-bonn.mpg.de/node/6134/abstracts