Perfect triangle-free 2-matchings -- On the structure of all minimum cuts in a network and applications -- Clutter percolation and random graphs -- The use of recurrence relations in computing -- A branch and bound algorithm for the Koopmans-Beckmann quadratic assignment problem -- A problem of scheduling conference accommodation -- Constructing timetables for sport competitions -- The reconstruction of latin squares with applications to school timetabling and to experimental design -- An algorithm for the single machine sequencing problem with precedence constraints -- Finding k edge-disjoint spanning trees of minimum total weight in a network: An application of matroid theory -- The distance between nodes for a class of recursive trees -- Optimization problems arising from the incorporation of split values in search trees -- Heuristic analysis, linear programming and branch and bound -- Heuristic improvement methods: How should starting solutions be chosen?.