A Brief Review on Egmont Köhler's Mathematical Work. Edge-pancyclicBlock-intersection Graphs. Symmetric Divisible Designs with k -λ1 = 1. Some Constructions of Group Divisible Designs withSinger Groups. On Indecomposable Pure Mendelsohn Triple Systems. ACombinatorial Characterization of Geometric Spreads. Hermitian Unitals areCode Words. Long Cycles in Subgraphs with Prescribed Minimum Degree. Coversof Graphs and EGQs. The 2-rotational Steiner Triple Systems of Order 25.Outline Symmetric Latin Squares. Intersections and Supports of QuadrupleSystems. Directed Star Decompositions of Directed Multigraphs. Some NaiveConstructions of S(2,3,v) and S(2,4,v).On the Maximum Cardinality of Binary Constant Weight Codes with PrescribedDistance. Über einen Satz von Köhler. Mutually Balanced NestedDesigns. Difference Families from Rings. Transitive MultipermutationGraphs. On Infinite Steiner Systems. Tree-partitions of Infinite Graphs.Plane Four-regular Graphs with Vertex-to-vertex Unit Triangles. SimpleDirect Constructions for Hybrid Triple Designs. Sets in a Finite Plane withFew Intersection Numbers and a Distinguished Point. The Existence ofCk-factorizations of K2n -F. Self-orthogonal Hamilton Path Decompositions. Cyclic 2-(91,6,1)Designs with Multiplier Automorphisms. The Spectrum of α-resolvableBlock Designs With Block Size 3. On Near Generalized Balanced TournamentDesigns. On Parallelism in Steiner Systems. Skolem Labelled Graphs. On theSimplicity of ˙2 and ˙3. A Class of 2-Chromatic SQS(22). TheSolution of the Bipartite Analogue of the Oberwolfach Problem. The Spectrumof Maximal Sets of One-factors. A Note on Check Character Systems UsingLatin Squares. On the Existence of Cyclic Steiner Quadruple SystemsSQS(2p). Designs Constructed from Maximal Arcs. On the ChromaticNumber of Special Distance Graphs. About Special Classes of Steiner SystemsS(2,4,v). A Few More RBIBDs with k=5 andλ=1. Research Problems.
