@article{COMIM_2009__17_1_a0, author = {Perfilieva, Irina and Wagenknecht, Michael}, title = {Editorial}, journal = {Communications in Mathematics}, pages = {3--3}, publisher = {mathdoc}, volume = {17}, number = {1}, year = {2009}, zbl = {1246.00024}, language = {en}, url = {http://geodesic.mathdoc.fr/item/COMIM_2009__17_1_a0/} }