@phdthesis{Ren2022a,
author = "J. Ren",
title = "Characteristics and Generation Mechanism of Polar Cap Patch: Multi-instrument Observations",
year = 2022 ,
month = "May",
keywords = "pfisr, risrn, risrc, dissertation",
doi = "https://dx.doi.org/10.7302/4781",
url = "https://hdl.handle.net/2027.42/172752",
school = "University of Michigan"
}