Using copositivity for global optimality criteria in concave quadratic programming problems. - Gabriele Danninger; Immanuel M. Bomze (Math. Program., 1993)

A Global Optimization Algorithm for Concave Quadratic Programming Problems. - Immanuel M. Bomze; Gabriele Danninger (SIAM J. Optim., 1993)

A finite algorithm for solving general quadratic problems. - Immanuel M. Bomze; Gabriele Danninger (J. Glob. Optim., 1994)