Goldman, « Hermann Eduard von Holst: Plumed Knight of American Historiography », The Mississippi Valley Historical Review, vol. 23, no 4, , p. 511–532 (DOI10.2307/1886150, JSTOR1886150)
jstor.org
Goldman, « Hermann Eduard von Holst: Plumed Knight of American Historiography », The Mississippi Valley Historical Review, vol. 23, no 4, , p. 511–532 (DOI10.2307/1886150, JSTOR1886150)