Assertion: folk music's history | /r/HasProperty | katharina hering
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Source sentences:
text: Oral history was also used by nineteenth century genealogists: Katharina Hering, " "That Food of the Memory which Gives the Clue to Profitable Research": Oral history as a source for local, regional, and family history in the nineteenth and early twentieth century" Oral History Review, (2007) 34 (2): 27-48.