• 

  OGND - results/titledata

  http://swb.bsz-bw.de/DB=2.104/SET=1/TTL=1/CMD?retrace=0&trm_old=&ACT=SRCHA&IKT=2999&SRT=RLV&TRM=102386129

  Keine Beschreibung vorhanden.

• 

  OGND - results/titledata

  http://swb.bsz-bw.de/DB=2.104/SET=1/TTL=1/CMD?retrace=0&trm_old=&ACT=SRCHA&IKT=2999&SRT=RLV&TRM=119107430

  Keine Beschreibung vorhanden.

• 

  Ancient Greek Music and Musical Instruments (1/2)

  https://web.archive.org/web/20110409041105/http://www.mlahanas.de/Greeks/Music.htm

  Keine Beschreibung vorhanden.

• 

  Clock Time-Line

  http://wayback.archive.org/web/20120421092041/http://www.ahsoc.demon.co.uk/timeline-clk.html

  The Antiquarian Horological Society (AHS), is a learned Society dedicated to the study of antiquarian clocks, watches and other forms of timekeeping.

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