Simple Cohen-Macaulay Codimension 2 Singularities
  In this article, we provide a complete list of simple Cohen-Macaulay codimension 2 singularities together with a list of adjacencies which is complete in the case of fat point and space curve singularities. 
Anne Fruehbis-Krueger (Leibniz Universitaet Hannover), Alexander   Neumer (Stiftung IHF, Ludwigshafen)