Editing Chern–Gauss–Bonnet theorem (section)

=== Proofs ===
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In 1944, the general theorem was first proved by [[S.-S. Chern|S. S. Chern]] in a classic paper published by the [[Princeton University]] math department.<ref>{{Cite journal|last=Chern|first=Shiing-Shen|date=October 1944|title=A Simple Intrinsic Proof of the Gauss-Bonnet Formula for Closed Riemannian Manifolds|url=http://dx.doi.org/10.2307/1969302|journal=The Annals of Mathematics|volume=45|issue=4|pages=747–752|doi=10.2307/1969302|jstor=1969302|issn=0003-486X|url-access=subscription}}</ref>

In 2013, a proof of the theorem via [[Supersymmetry|supersymmetric]] [[Euclidean field theory|Euclidean field theories]] was also found.<ref name=":3" />