Jochen Könemann, R. Ravi. A matter of degree: improved approximation algorithms for degree-bounded minimum spanning trees. In STOC. pages 537-546, 2000. [doi]
@inproceedings{KonemannR00,
title = {A matter of degree: improved approximation algorithms for degree-bounded minimum spanning trees},
author = {Jochen Könemann and R. Ravi},
year = {2000},
doi = {10.1145/335305.335371},
url = {http://doi.acm.org/10.1145/335305.335371},
researchr = {https://researchr.org/publication/KonemannR00},
cites = {0},
citedby = {0},
pages = {537-546},
booktitle = {STOC},
}