@unpublished{TUW-294412, author = {M{\"u}hlmann, Christoph and Filzmoser, Peter and Nordhausen, Klaus}, title = {Local Difference Matrices for Spatial Blind Source Separation}, year = {2020}, note = {talk: 3rd Conference of the Arabian Journal of Geosciences (CAJG), Tunisia; 2020-11-02 -- 2020-11-05} }