@incollection{Bracken17,
author = {Paul Bracken},
title = {Spectral Theory of Operators on Manifolds},
booktitle = {Manifolds},
publisher = {IntechOpen},
address = {Rijeka},
year = {2017},
editor = {Paul Bracken},
chapter = {4},
doi = {10.5772/67095},
url = {https://doi.org/10.5772/67095}
}