@article{Themens2019a, author = "D. R. Themens and P. Jayachandran and A. M. McCaffrey and B. Reid and R. H. Varney", title = "A Bottomside Parameterization for the Empirical Canadian High Arctic Ionospheric Model", year = 2019 , journal = "Radio Science", volume = 54, number = 5, keywords = "pfisr, risrn", doi = "10.1029/2018RS006748", url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018RS006748" } @article{Themens2018a, author = "D. R. Themens and P. T. Jayachandran and D. Bilitza and P. J. Erickson and I. Haggstrom and M. V. Lyashenko and B. Reid and R. H. Varney and L. Pustovalova", title = "Topside electron density representations for middle and high latitudes: A topside parameterization for E-CHAIM based on the NeQuick", year = 2018 , journal = "Journal of Geophysical Research: Space Physics", publisher = "American Geophysical Union", volume = 123, keywords = "pfisr, risrn", doi = "10.1002/2017JA024817" }