Reference health
A Relaxed Optimization Approach for Cardinality-Constrained Portfolio Optimization
13/13 checkable references clean · checked 2026-08-28
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 13 checked references that resolve
resolves10.1016/j.eswa.2008.06.007
Markowitz-based portfolio selection with minimum transaction lots, cardinality constraints and regarding sector capitalization using genetic algorithm
resolves10.1016/j.eswa.2011.09.129
Markowitz-based portfolio selection with cardinality constraints using improved particle swarm optimization
resolves10.1080/10556780701722542
Lagrangian relaxation procedure for cardinality-constrained portfolio optimization
resolves10.1007/s10898-012-9842-2
Convex relaxations and MIQCQP reformulations for a class of cardinality-constrained portfolio selection problems
resolves10.1007/s10589-012-9471-1
A local relaxation method for the cardinality constrained portfolio optimization problem
resolves10.1007/s10107-013-0701-9
Proximal alternating linearized minimization for nonconvex and nonsmooth problems
resolves10.1137/120869778
Sparsity Constrained Nonlinear Optimization: Optimality Conditions and Algorithms
resolves10.1137/080716542
A Fast Iterative Shrinkage-Thresholding Algorithm for Linear Inverse Problems
The 3 references without a DOI — listed, not checked
no DOI — not checkedref11
no DOI — not checkedref13
no DOI — not checkedref15
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.
checked 2026-08-28 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
Embed this badge
Both snippets point at the live badge image and link back to this page. The badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.
<a href="https://citestamp.com/citestamped/10.2139/ssrn.3272588"><img src="https://citestamp.com/citestamped/10.2139/ssrn.3272588/badge.svg" alt="CiteStamped reference-health badge" width="460" height="64"></a>
[](https://citestamp.com/citestamped/10.2139/ssrn.3272588)