TY - CHAP A1 - Grötschel, Martin A1 - Padberg, Manfred ED - Henn, Rudolf ED - Korte, Bernhard ED - Oettli, W. T1 - On the symmetric travelling salesman problem T2 - Optimization and operations research, Proc. Workshop, Bonn 1977 Y1 - 1978 VL - 157 SP - 105 EP - 115 PB - Springer ER - TY - JOUR A1 - Grötschel, Martin A1 - von Randow, Rabe T1 - A property of continuous unbounded algorithms JF - Mathematical Programming Y1 - 1978 VL - 14 SP - 373 EP - 377 ER - TY - JOUR A1 - Grötschel, Martin T1 - Hypo-Hamiltonian Facets of the Symmetric Travelling Salesman Polytope JF - Zeitschrift für Angewandte Mathematik und Mechanik Y1 - 1978 VL - 58 SP - T469 EP - T471 ER - TY - CHAP A1 - Deuflhard, Peter A1 - Apostolescu, Victor ED - Stoer, J. T1 - An Underrelaxed Gauss-Newton Method for Equality Constrained Nonlinear Least Squares Problems T2 - Optimization Techniques, Proc. 8th IFIP Conf., Würzburg 1977, part 2 Y1 - 1978 VL - 7 SP - 22 EP - 32 PB - Springer ER -