Reference health

Efficient solution methods for covering tree problems

https://doi.org/10.1007/bf02564788
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7/7 checkable references clean · checked 2026-08-10

Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.

3 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.

The 7 checked references that resolve
resolves10.1002/1520-6750(199302)40:1<129::AID-NAV3220400109>3.0.CO;2-T
Maximal covering tree problems
resolves10.1287/trsc.23.4.288
Maximal Direct Covering Tree Problems
resolves10.1016/0377-2217(93)90141-9
Indirect covering tree problems on spanning tree networks
resolves10.1007/BF02097806
A minimum length covering subgraph of a network
resolves10.1002/1520-6750(199004)37:2<309::AID-NAV3220370209>3.0.CO;2-8
A minimum-length covering subtree of a tree
resolves10.1016/0305-0548(88)90003-2
The location of central structures in trees
resolves10.1016/0377-2217(95)00321-5
A review of extensive facility location in networks
The 3 references without a DOI — listed, not checked
no DOI — not checkedCohon, J. L. (1978).Multiobjective Programming and Planning. Academic Press, New York.
no DOI — not checkedCurrent, J. R., C. S. ReVelle and J. L. Cohon (1986). The hierarchical network design problem.European Journal of Operational Research 21, 188–197.
no DOI — not checkedGarey, M. J. and D. S. Johnson (1979).Computers and Intractability: a Guide to the Theory of NP-Completeness, Freeman, San Francisco.
What this badge says. CiteStamped means the CHECKABLE references of this work were clean at the dated check: each resolved to a known work in a public registry, and none carried a retraction notice at that time. It says nothing about the quality, findings, or importance of the work itself, and nothing about references deposited without a DOI.

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