Fully extended r-spin TQFTs
N. Carqueville, L. Szegedy, Quantum Topology 14 (2023) 467–532.

Area-dependent quantum field theory
I. Runkel, L. Szegedy, Communications in Mathematical Physics 381 (2021) 83–117.

Topological field theory on r-spin surfaces and the Arf-invariant
I. Runkel, L. Szegedy, Journal of Mathematical Physics 62 (2021).