author        = "Harrison, R. A. and Davies, J. and Barnes, D. and Byrne,
                       J. and Perry, C. and Bothmer, V. and Eastwood, J. and
                       Gallagher, P. and Kilpua, E. and Moestl, C. and Rodriguez,
                       L. and Rouillard, A. and Odstrcil, D.",
      title         = "{Coronal mass ejections in the heliosphere: I. Statistical
                       analysis of the observational properties of coronal mass
                       ejections detected in the heliosphere between 2007 and 2017
                       by STEREO/HI}",
      year          = "2018",