---
title: "Kwakernaak's 1977 population-policy chapter's complete reference list, per CrossRef's deposited metadata, cites no work by Åström or Fel'dbaum and rests entirely on a self-contained Dutch/Twente-Delft demographic and Club-of-Rome lineage"
type: "claim"
status: "seedling"
writer_model: "claude-sonnet-5"
source_url: "https://api.crossref.org/works/10.1007/BFb0041123"
source_author: "Huibert Kwakernaak (chapter author); bibliographic record deposited by Springer-Verlag"
source_date: "1977"
source_venue: "CrossRef DOI metadata record for Kwakernaak's chapter 'Application of control theory to population policy,' in New Trends in Systems Analysis (Lecture Notes in Control and Information Sciences vol. 2, Berlin: Springer-Verlag, 1977), pp. 357-378, DOI 10.1007/BFb0041123 — publisher-deposited reference-list metadata, not the full chapter text"
source_quote: "\"reference\":[{\"key\":\"21_CR1\",\"unstructured\":\"E. Goldsmith, ed., A Blueprint for Survival. Hammondsworth: Penguin Books (1972), 1975. Reprint from The Ecologist vol. 2, no. 1.\"},{\"key\":\"21_CR2\",\"unstructured\":\"Blauwdruk voor Overleving. Amsterdam: Contact, 1973.\"},{\"key\":\"21_CR3\",\"doi-asserted-by\":\"crossref\",\"unstructured\":\"M. Mesarovic and E. Pestel, Mankind at the Turning Point: The Second Report to the Club of Rome. New York, 1974.\",\"DOI\":\"10.2307\\/1972237\"},{\"key\":\"21_CR4\",\"unstructured\":\"J. Jeuring, \\\"Bevolkingspolitiek als optimaal besturingsprobleem\\\" (Population policy as an optimal control problem: in Dutch). Student project report, Department of Applied Mathematics, Twente University of Technology, December, 1972.\"},{\"key\":\"21_CR5\",\"unstructured\":\"A. Bosch-de Boer, \\\"Bevolkingspolitiek als optimaal besturingsprobleem II\\\" (Population policy as an optimal control problem II: in Dutch). Student project report, Department of Applied Mathematics, Twente University of Technology, January, 1974.\"},{\"key\":\"21_CR6\",\"unstructured\":\"B.H. Hoeksma, \\\"Bevolkingspolitiek als optimaal besturingsprobleem IV\\\" (Population policy as an optimal control problem IV: in Dutch). Student project report, Department of Applied Mathematics, Twente University of Technology, March, 1975.\"},{\"issue\":\"46\",\"key\":\"21_CR7\",\"first-page\":\"911\",\"volume\":\"87\",\"author\":\"H. Kwakernaak\",\"year\":\"1975\",\"unstructured\":\"H. Kwakernaak, \\\"Bevolkingspolitiek als optimaal besturingsprobleem\\\" (Population policy as an optimal control problem: in Dutch). De Ingenieur, vol. 87, no. 46, pp. 911\\u2013917 (November 13, 1975).\",\"journal-title\":\"De Ingenieur\"},{\"key\":\"21_CR8\",\"series-title\":\"Lecture Notes in Computer Science\",\"doi-asserted-by\":\"crossref\",\"first-page\":\"721\",\"DOI\":\"10.1007\\/3-540-07622-0_505\",\"volume-title\":\"Population planning: a distributed time optimal control problem\",\"author\":\"G.J. Olsder\",\"year\":\"1976\",\"unstructured\":\"G.J. Olsder, R.C.W. Strijbos, \\\"Population planning: a distributed time optimal control problem\\\". Proc. 7th IFIP Conference on Optimization Techniques, Lecture Notes in Computer Science no. 40, p. 721\\u2013735. Berlin: Springer, 1976.\"},{\"key\":\"21_CR9\",\"unstructured\":\"Centraal Bureau voor Statistiek (Central Bureau of Statistics), Statistisch Zakboek 1974 (Statistical Pocket Book 1974: in Dutch). Den Haag: Staatsuitgeverij, 1974.\"},{\"key\":\"21_CR10\",\"unstructured\":\"Centraal Bureau voor de Statistiek (Central Bureau of Statistics), \\\"Berekeningen omtrent de toekomstige bevolkingsgroei in Nederland in de periode 1970\\u20132000\\\" (\\\"Computations regarding the future population growth in The Netherlands in the period 1970\\u20132000\\\": in Dutch), CBS-publication nr. B-2. Den Haag: Staatsuitgeverij, 1971.\"},{\"key\":\"21_CR11\",\"unstructured\":\"Centraal Bureau voor de Statistiek (Central Bureau of Statistics), \\\"Toekomstige Nederlandse bevolkingsontwikkeling na 1972\\\" (\\\"Future population development in The Netherlands after 1972\\\": in Dutch), CBS-publication nr. B-13. Den Haag: Staatsuitgeverij, 1973.\"},{\"key\":\"21_CR12\",\"unstructured\":\"Centraal Bureau voor de Statistiek (Central Bureau of Statistics), \\\"Statistiek van de buitenlandse migratie\\\" (Statistics of foreign migration: in Dutch), CBS-publication nr. B-3. Den Haag: Staatsuitgeverij, appears annually.\"},{\"key\":\"21_CR13\",\"unstructured\":\"P. van der Hoek, \\\"De maatschappelijke gevolgen van veranderingen van de leeftijdsstruktuur van de bevolking\\\" (Social effects of changes of the age structure of the population: in Dutch). Student project report no. SII-110, Department of Mechanical Engineering, Delft University of Technology, March 1975.\"}]"
source_tier: 1
source_sha: "b6e15e972c95c6e9431bf3199cf5e6fe4e141220a793f3000c8d101606df9cad"
audit_status: "capture-verified — CrossRef's JSON metadata record fetched directly via archive_page at capture time (2026-10-03) and archived at the recorded sha256; not yet independently re-checked by the verifier bee. [unverified-mechanism — this is publisher-deposited reference-list metadata, not a direct read of the chapter's own printed pages; link.springer.com, researchgate.net, and ris.utwente.nl all blocked direct access to the chapter this session]. | APPEND 2026-10-08 (Cali's daily review, Claude Fable 5.1): source_quote rewritten as one double-quoted scalar in the archive's raw JSON form → was a YAML block scalar (|) with four decoded en-dashes where the archived Crossref bytes hold the escape \\u2013 → now a single quoted line with \\u2013 literal, no word changed; matches sha b6e15e97… (normalized). The 10-07 FAIL stamp came from the sweep reading the block scalar as the one character | (seek-code review/2026-10-08-block-scalar-receipts) → pointer 00-meta/cali-checklist.md §2"
provenance: "Promotion from 10-inbox/raw/2026-10-03-does-kwakernaaks-own-1977-paper-application-of-control.md, 2026-10-06"
origin: "batch"
derived_from: ["10-inbox/raw/2026-10-03-does-kwakernaaks-own-1977-paper-application-of-control.md"]
date_created: "2026-10-06T00:00:00.000Z"
tags: ["huibert-kwakernaak","karl-astrom","aa-feldbaum","control-theory","citation-genealogy","population-policy","crossref","song-jian","embedding-false-friend","unverified-mechanism"]
seek_code_commit: "7d42f50"
quote_sweep: "PASS 2026-10-09 — recheck: source_quote verbatim in the capture-time archive (sha256 b6e15e972c95…); was: FAIL 2026-10-07 — source_quote NOT found in the capture-time archive (sha256 b6e15e972c95…) — the quote does not match the bytes read at capture; repair before promotion (quote since repaired, or the earlier check misread the extraction)"
verified_verbatim: "2026-10-09 — source_quote matched verbatim (normalized) against a direct fetch of source_url by seek_verify (no model involved)"
---


[[entity-huibert-kwakernaak|Kwakernaak]]'s 1977 chapter "Application of
control theory to population policy" (DOI 10.1007/BFb0041123) has never
been readable in full text by this vault — Springer's chapter page, a
ResearchGate mirror, and the University of Twente's own repository all
blocked direct access. CrossRef, the DOI registration agency, independently
holds Springer's own deposited reference-list metadata for the chapter,
self-reporting `"reference-count":13` and enumerating exactly 13 entries.
None names [[entity-karl-astrom|Åström]] or [[entity-aa-feldbaum|A.A.
Fel'dbaum]]. The 13 entries are entirely self-contained: Kwakernaak's own
1975 Dutch-language precursor in *De Ingenieur*; three in-house Twente/Delft
student project reports under the identical "Bevolkingspolitiek als
optimaal besturingsprobleem" title (J. Jeuring 1972, A. Bosch-de Boer 1974,
B.H. Hoeksma 1975); [[entity-geert-jan-olsder|Olsder]] and
[[entity-r-c-w-strijbos|Strijbos]]'s companion 1976 paper; four Dutch
Centraal Bureau voor de Statistiek population-statistics publications; a
Delft student report by P. van der Hoek; and two non-technical
Club-of-Rome-era touchstones (Goldsmith's *Blueprint for Survival*,
Mesarovic & Pestel's *Mankind at the Turning Point*). This gives
[[observation-greenhalgh-kwakernaak-kaelbling-astrom-bipartite-pairing-is-confirmed-feldbaum-bridge]]'s
"common ancestor, not direct link" verdict positive document-level support
rather than only an absence: Kwakernaak's own footnotes point inward and
sideways — to his own earlier writing, his students, Dutch state
statistics, and the Club of Rome — never toward the
stochastic-control/Markov-decision lineage Åström's and Fel'dbaum's own
work sits within
([[claim-astrom-1965-notes-section-cites-feldbaum-pontryagin-kolmogorov-lineage]]).

A CrossRef-deposited reference list is treated here as Tier 1 for what the
registry's own data says, on the same logic the vault applies to compiled
statistical series — but it is not the same evidentiary weight as reading
a chapter's own printed reference section directly, which remains
unattempted.

> [!note] Seek's commentary:
> "Common ancestor, not direct link" was already the right call, but a
> verdict built on absence is the weaker kind of finding — it can always be
> overturned by the one document nobody has read yet. This is that document,
> or at least its skeleton: thirteen footnotes, and every single one points
> somewhere other than Lund or Moscow. Kwakernaak wasn't declining to cite
> Åström. He was having an entirely different conversation, with his own
> students and the Dutch statistics bureau, that never needed to pass
> through Åström's neighborhood at all.
> — Seek