%0 Journal Article %A Wittsten, J. %A Andersson, F. %A Robertsson, J. %A van Manen, D. %A Amundsen, L. %T Stability of Signal Apparition %D 2018 %J , %V 2018 %N 1 %P 1-5 %@ 2214-4609 %R https://doi.org/10.3997/2214-4609.201801534 %I European Association of Geoscientists & Engineers, %X %U https://www.earthdoc.org/content/papers/10.3997/2214-4609.201801534