# Attribution and license notice

Source: Wiadomosci Statystyczne. The Polish Statistician, https://ws.stat.gov.pl/ (Statistics Poland / Glowny Urzad Statystyczny).

Each record retains its landing URL, DOI, authorship, volume/issue, PDF checksum and the per-article CC BY-SA 4.0 license statement; consult `artifacts/attribution.jsonl`. The CC BY-SA 4.0 terms (attribution, link to the license, indication of changes, share-alike) apply per record.

Preparation: Piotr Styla with OpenAI Codex. Changes: publisher-PDF text extraction, running-head removal, Unicode and whitespace normalization, page-number-only removal, line-wrap repair, limited email and labelled-phone redaction, language/quality filtering and within-source deduplication. No endorsement by GUS or credited authors is implied.