전기 그랜드 피아노 (Korean Wikipedia)

Analysis of information sources in references of the Wikipedia article "전기 그랜드 피아노" in Korean language version.

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1web.archive.org

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ieee.org

Hans-Joachim Braun (2004). “Music Engineers. The Remarkable Career of Winston E. Knock, Electronic Organ Designer and NASA Chief of Electronics” (PDF). 《IEEE Conference on the History of Electronics》. 2012년 3월 9일에 원본 문서 (PDF)에서 보존된 문서.

web.archive.org

Hans-Joachim Braun (2004). “Music Engineers. The Remarkable Career of Winston E. Knock, Electronic Organ Designer and NASA Chief of Electronics” (PDF). 《IEEE Conference on the History of Electronics》. 2012년 3월 9일에 원본 문서 (PDF)에서 보존된 문서.

wikipedia.org

de.wikipedia.org

Fritz W. Winckel (1931). “Das Radio-Klavier von Bechstein-Siemens-Nernst”. 《Die Umschau》 35: 840–843. ISSN 0722-8562.

worldcat.org

Fritz W. Winckel (1931). “Das Radio-Klavier von Bechstein-Siemens-Nernst”. 《Die Umschau》 35: 840–843. ISSN 0722-8562.
Hans-W. Schmitz (1990년 4월). “Der Bechstein-Siemens-Nernst-Flügel”. 《Das mechanische Musikinstrument》. 16. Jahrgang (49): 21–27. ISSN 0721-6092. (Technical report)