Citation: U. Faigle et K. Hoede, SPECIAL VOLUME - 4TH TWENTE WORKSHOP ON GRAPHS AND COMBINATORIAL OPTIMIZATION - PREFACE, Discrete applied mathematics, 79(1-3), 1997, pp. 1-1
Citation: U. Faigle et K. Hoede, 2ND TWENTE WORKSHOP ON GRAPHS AND COMBINATORIAL OPTIMIZATION - PREFACE, Discrete applied mathematics, 51(1-2), 1994, pp. 1-1