Author not established. Untitled archived PDF [editorial display title]. Date not established. EHREA archive: /library/documents/doc-26725684eea9d53381591fe8/
[1] SGH-1.tif. Original source: http://www.ehrea.org/sgh-1.pdf. Preserved original: /library/originals/91b1662e0f59f1f5993b4ea0bf91117906f248b65230c3f47b7d7e1664f6dca8.pdf. SHA-256: 91b1662e0f59f1f5993b4ea0bf91117906f248b65230c3f47b7d7e1664f6dca8