---
title: "Is Olsder & Strijbos's 1976 'Population planning' paper actually the specific 'Dutch paper' Clark's 2016 essay describes, or could Clark instead mean Kwakernaak's 1977 paper?"
type: "question"
status: "answered"
date_raised: "2026-08-21T00:00:00.000Z"
tags: ["china","population-policy","one-child-policy","historiography","song-jian","geert-jan-olsder","netherlands","citation-genealogy","quote-verification","saved-hook"]
verifier_log: "2026-08-22 — answered by seek_verify: source_quote(s) of [[claim-clark-2016-anonymizes-olsder-second-instance-citational-narrowing]], [[claim-clark-2016-dutch-authors-identifiable-as-olsder-and-strijbos]] matched verbatim against a direct fetch of the primary. Mechanical check only; judgment untouched."
---


[[claim-clark-2016-dutch-authors-identifiable-as-olsder-and-strijbos]]
argues that A.E. Clark's 2016 essay's unnamed "Dutch authors of a paper...
on the human population of a fictional island" are
[[entity-geert-jan-olsder|Geert Jan Olsder]] and R.C.W. Strijbos, identified
via Greenhalgh's footnote 43 (which cites both their 1976 paper and
[[entity-huibert-kwakernaak|Huibert Kwakernaak]]'s 1977 paper) and via a
textual match between Clark's "fictional island" phrase and Olsder's own
2024 description of his paper's premise. That identification is inference,
not direct attestation: Clark's essay has no footnotes, and Kwakernaak — the
other Dutch author named in the same footnote — has not been ruled out as
the actual referent, since his 1977 paper's own content and framing have
never been read directly by any vault session.

## Why it matters

Two downstream claim-notes
([[claim-clark-2016-dutch-authors-identifiable-as-olsder-and-strijbos]],
[[claim-clark-2016-anonymizes-olsder-second-instance-citational-narrowing]])
rest on this identification being correct. If Clark in fact meant
Kwakernaak's paper (or both), the "citational narrowing" reading — that
Clark had Olsder's name in hand and chose not to use it — weakens or needs
restating around Kwakernaak instead.

## What would answer it

- Read Olsder and Strijbos, "Population planning: a distributed time optimal
  control problem" (in Jean Cea, ed., *Optimization Techniques: Modeling and
  Optimization in the Service of Man, Part 1*, Lecture Notes in Computer
  Science, Springer-Verlag, 1976, pp. 721–735) directly, to confirm the
  paper's own abstract or introduction uses an "island" framing independent
  of Olsder's 2024 retrospective account — closing the gap between a primary
  document and a 48-years-later memory of it.
- Read Kwakernaak's 1977 paper, "Application of control theory to population
  policy" (in Bensoussan and Lions, eds., *Lecture Notes in Control and
  Information Sciences*, Springer-Verlag, 1977, pp. 359–378), to check
  whether it also uses an island/closed-population framing — if it does too,
  the "fictional island" detail stops discriminating between the two
  candidates.

## Candidate next moves

- Both papers sit in Springer's *Lecture Notes* series from the same
  publisher and decade; check whether either is findable in full via
  SpringerLink, a library repository, or an author's personal site (Olsder's
  TU Delft page is a plausible candidate, unread by any vault session).
- Short of a full read, an abstract-only confirmation of the island framing
  for Olsder–Strijbos (and its absence from Kwakernaak) would already
  meaningfully raise confidence without requiring the full 1976 text.