File:Brockhaus_Lexikon.jpg licensed with Cc-by-sa-2.0 2005-09-06T20:05:16Z Jvdc 1600x1200 (781610 Bytes) Brockhaus Universal-Lexikon, ca. 1910 Source: Jan
|Description=Steam engine technology |Source=Brockhaus' Konversations-Lexikon, 14.Auflage, 4.Band |Date=1894 |Author=F.A. Brockhaus, Berlin und Wien |Permission=Author
|Description=Steam engine technology |Source=Brockhaus' Konversations-Lexikon, 14.Auflage, 4.Band |Date=1894 |Author=F.A. Brockhaus, Berlin und Wien |Permission=Author