@article{10_4171_dm_712,
     author = {Zelin Yi and Nigel Higson},
     title = {Spinors and the {Tangent} {Groupoid}},
     journal = {Documenta mathematica},
     pages = {1677--1720},
     year = {2019},
     volume = {24},
     doi = {10.4171/dm/712},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/712/}
}