Werbos's 1988 body text on pp. 350-355 (recurrent derivation, gas-model application, conclusion) names none of Isaacs, Bellman, Pontryagin, Kelley, or Bryson
A manual read of pp. 350-355 of Werbos (1988) found no mention of Isaacs, Bellman, Pontryagin, Kelley, or Bryson. The span covers the end of Section 3 (the recurrent-network derivation, batch vs. pattern vs. real-time adaptation), Section 4 (the 1982 EIA natural-gas-model application) and the Conclusion, up to the References heading on p. 356.
This fills the gap left by claim-werbos-1988-reference-list-names-no-isaacs-bellman-pontryagin-kelley-or-bryson, which established the negative for the bibliography and roughly the first 743 lines of the extraction only. Together the two now cover the reference list and the body through p. 355. Pages 341-349 remain only as read in the earlier note.
The only named people in the range are Hinton (1987), the Troll/MIT software, McNicol, O'Neill & Dickens (1981), O'Neill & Dickens (1981), EIA (1982), Forsythe & Moler (1967), and Werbos's own works; Hopfield and Tank (1986) and the SAS Institute software are named on p. 349, at the boundary just before the range (corrected 2026-09-27, cross-model audit). The only control-theory vocabulary is "adjoint": "adjoint model" (p. 353), "adjoint method" (p. 354), and the remark that the adjoint is "well-conditioned" numerically by the Forsythe & Moler argument. The explicit tie to control theory sits at p. 349 (claim-werbos-1988-equates-dynamic-feedback-with-control-theorys-time-dependent-multipliers). The application is documented in claim-werbos-1988-doe-affiliation-and-gas-market-test-case.
Limits. This is a claim about citation, not influence; see claim-recht-adjoints-equivalence-not-transmission and claim-werbos-1974-does-not-cite-linnainmaa. The negative rests on a human-style read of noisy OCR (garbled equations), because the session's string search was blocked. Hence seedling.
Source
“the adjoint method has passed very severe tests of its accuracy.”
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