@article{FUNKE11_ACP_HALLO, author = "B. Funke and A. Baumgaertner and M. Calisto and T. Egorova and C. H. Jackman and J. Kieser and A. Krivolutsky and M. L{\'o}pez-Puertas and D. R. Marsh and T. Reddmann and E. Rozanov and S.-M. Salmi and M. Sinnhuber and G. P. Stiller and P. T. Verronen and S. Versick and T. von Clarmann and T. Y. Vyushkova and N. Wieters and J. M. Wissing", title = "Composition changes after the ''{H}alloween'' solar proton event: the {H}igh {E}nergy {P}article {P}recipitation in the {A}tmosphere ({HEPPA}) model versus {MIPAS} data intercomparison study", journal= "Atmos. Chem. Phys.", volume = "11", number = "17", pages = "9089-9139", year = "2011" }