Informational Sites:
- Stahlhelm Sammlung ("Steel Helmet Collection") - German helmet history (German)
- Hotdog and Soda Company - BGS / Bundesgrenzschutz Uniforms (German)
- World War Helmets - Good info on post-war helmets (French)
- 57er-orden.de - Info on 1957 version / veterans medals (German)
Forums:
- Wehrmacht-Awards - East / West German and "57er" sections