@article{YamazakiStolleMatzkaetal.2018,
  author    = {Yosuke Yamazaki and Claudia Stolle and J{\"u}rgen Matzka and Huixin Liu and Chihiro Tao},
  title     = {Interannual variability of the daytime equatorial ionospheric electric field},
  journal   = {Journal of geophysical research : Space physics},
  volume    = {123},
  number    = {5},
  pages     = {4241 -- 4256},
  doi       = {10.1029/2017JA025165},
  year      = {2018},
}