TY - JOUR AU - P F. Körner TI - A note on optimality conditions for dual problems to the traveling salesman problem JO - Applicationes Mathematicae PY - 1991 SP - 571 EP - 573 VL - 21 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-21-4-571-573/ DO - 10.4064/am-21-4-571-573 LA - en ID - 10_4064_am_21_4_571_573 ER -