(en) James Walter Hill, The D Major Clarinet Concerto by Theodor von Schacht (1748-1823): A Lecture Recital, Together with Three Additional Recitals of Selected Works of Brahms, Richmond, Rossini, Crusell, Reger, and Others (dissertation), Denton, Texas, North Texas State University, , 62 p. (OCLC27389209, lire en ligne).
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(en) James Walter Hill, The D Major Clarinet Concerto by Theodor von Schacht (1748-1823): A Lecture Recital, Together with Three Additional Recitals of Selected Works of Brahms, Richmond, Rossini, Crusell, Reger, and Others (dissertation), Denton, Texas, North Texas State University, , 62 p. (OCLC27389209, lire en ligne).