W. R. Pulleyblank

Optimizing over the subtour polytope of the travelling salesman problem

Sylvia C. Boyd, S. C. Boyd, W. R. Pulleyblank, 1990, Math. Program..

Forest covers and a polyhedral intersection theorem

W. R. Pulleyblank, A. B. Gamble, 1989, Math. Program..

Corrigenda: Clique Tree Inequalities and the Symmetric Travelling Salesman Problem

M. Grötschel, W. R. Pulleyblank, 1987, Math. Oper. Res..