Ephraim Korach, Michal Stern. The clustering matroid and the optimal clustering tree. Math. Program., 98(1-3):385-414, 2003. [doi]
@article{KorachS03,
title = {The clustering matroid and the optimal clustering tree},
author = {Ephraim Korach and Michal Stern},
year = {2003},
doi = {10.1007/s10107-003-0410-x},
url = {http://dx.doi.org/10.1007/s10107-003-0410-x},
researchr = {https://researchr.org/publication/KorachS03},
cites = {0},
citedby = {0},
journal = {Math. Program.},
volume = {98},
number = {1-3},
pages = {385-414},
}