@article{Shen2016a, author = "Y. Shen and D. J. Knudsen and J. K. Burchill and A. Howarth and A. Yau and R. J. Redmon and D. M. Miles and R. H. Varney and M. J. Nicolls", title = "Strong ambipolar-driven ion upflow within the cleft ion fountain during low geomagnetic activity", year = 2016 , journal = "J. Geophys. Res. Space Physics", number = 121, keywords = "risrn", doi = "10.1002/2016JA022532", url = "https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JA022532" }