found: His Four duets in form of a sonata, c1956:t.p. (Stark) caption (Robert Stark)
found: Baker's 6th ed.(Stark, Robert; German clarinetist; b. Klingenthal, Sept. 19, 1847; d. Würzburg, Oct. 29, 1922)
found: Spohr, L. Fantasie u. Variationen, Clarinette u. Pianoforte, op. 81, 1994?:caption (Rob. Stark)
found: RLIN, Oct. 1, 1999(hdgs.: Stark, Robert, 1847-1922; Stark, R.; usage: Robert Stark, Rob. Stark, R. Stark, Stark)
found: Stark, Robert. Clarinet concertos, ℗2015:label (Robert Stark) insert (born September 19, 1847, Klingenthal, Saxony; died 1922, at age 75; composer, clarinetist, and teacher at the Würzburger Musikschule)