@article{10_2140_agt_2020_20_1641,
     author = {Hutchings, Michael and Nelson, Jo},
     title = {Axiomatic {S1} {Morse{\textendash}Bott} theory},
     journal = {Algebraic and Geometric Topology},
     pages = {1641--1690},
     year = {2020},
     volume = {20},
     number = {4},
     doi = {10.2140/agt.2020.20.1641},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2020.20.1641/}
}