Carpathian Journal of Mathematics, Vol. 25, No. 1 (2009), pp. 104-118 (15 pages) In this survey paper, we discuss the development of the Generalized Minimum Spanning Tree Problem, denoted by GMSTP, ...
Transportation Science, Vol. 38, No. 3 (August 2004), pp. 343-356 (14 pages) Bounds and approximate formulae are developed for the average optimum distance of the transportation linear programming ...