@article{Pick:4773,
      author        = "Pick, M.  and Magdalenic, J.   and Cornilleau-Wehrlin, N. 
                       and Grison, B.  and Schmieder, B.  and Bocchialini, K. ",
      title         = "{Role of the coronal environment in the formation of four
                       shocks observed without coronal mass ejections at Earth's
                       Lagrangian point L1  }",
      year          = "2019",
}