Primary Derived

IRT‑Handbuch v4.1 EV

The original IRT handbook is hosted as a flipbook (EV version). We preserved the flipbook assets as primary evidence and produced an English translation for research use only. The translation is **derived** and not an official edition.

Primary Source (Flipbook)

  • Flipbook landing page: https://ffmm.braintenance.de/Books/IRT-Handbuch/
  • Config (page list): `research/sources/2025-irt-handbuch-v4-1-ev/javascript/config.js`
  • Text index: `research/sources/2025-irt-handbuch-v4-1-ev/files/search/book_config.js`

Derived Outputs

  • Assembled PDF (derived): `research/sources/2025-irt-handbuch-v4-1-ev/irt-handbuch-v4-1-ev.pdf`
  • English translation (derived): `research/translation/irt-handbuch-v4-1-ev-full/irt-handbuch-english.pdf`

QA Notes

Spot‑checks were performed on early and mid‑book pages. Page 150 contains no extractable text in OCR or the flipbook index. Full QA notes are in `research/translation/irt-handbuch-v4-1-ev-full/qa.md`.