Author not established. Untitled archived PDF [editorial display title]. Date not established. EHREA archive: /library/documents/doc-69557ea524013b5bf4dfe0be/
[1] ??? ?. Original source: http://www.ehrea.org/ELFRC4.pdf. Preserved original: /library/originals/adbfece58449a80d16ad68994e9d5c514fb64478d8eca4e13b0a79505710b22a.pdf. SHA-256: adbfece58449a80d16ad68994e9d5c514fb64478d8eca4e13b0a79505710b22a