1903/12/01 by Otto Blumenthal · 3 citations
Arts and Humanities · Mathematics · Social Sciences · #Art #Education Methods and Technologies #Humanities #Linguistic Education and Pedagogy #Mathematics
paper · doi:10.1007/bf01444306
crossref issued 1903/12/01 · crossref published 1903/12/01 · crossref published-print 1903/12/01 · openalex publication_date 1903/12/01 · crossref created 2005/04/12 · crossref deposited 2020/04/06 · openalex created_date 2025/10/10 · crossref indexed 2026/04/06 · openalex updated_date 2026/07/23