R. Ravi 0001, Madhav V. Marathe, S. S. Ravi, Daniel J. Rosenkrantz, Harry B. Hunt III. Approximation Algorithms for Degree-Constrained Minimum-Cost Network-Design Problems. In S. S. Ravi, Sandeep K. Shukla, editors, Fundamental Problems in Computing, Essays in Honor of Professor Daniel J. Rosenkrantz. pages 241-266, Springer, 2013. [doi]
Abstract is missing.