From the description of Autograph letter signed, dated : Brussels, 2 March 1887, to an unidentified recipient, 1887 Mar. 2. (Unknown). WorldCat record id: 270679435From the description of Autograph letter signed, dated : [Brussels, 7 July 1888], to E. Zilcken in The Hague, 1888 July 7. (Unknown). WorldCat record id: 270679433From the description of Autograph letter signed, dated : Brussels, 17 October 1896 , to [Joseph Hollman?], 1896? Oct. 17. (Unknown). WorldCat record id: 270679428From the description of Autograph letters signed (2), dated : [n.p., Brussels?, 1890?], to [Vincent d'Indy], 1890?. (Unknown). WorldCat record id: 270679431From the description of Autograph manuscript signed, dated : [n.p.], 18 March 1927, 1938 Jan. 17. (Unknown). WorldCat record id: 270679437From the description of Autograph letter signed, dated : Paris, 26 May 1911, to M. Bocquel , 1911 May 26. (Unknown). WorldCat record id: 270679424From the description of Autograph letter signed, dated : Brussels, 21 May 1893, to M. [Francesco?] Berger, 1893 May 21. (Unknown). WorldCat record id: 270679420From the description of Autograph letter signed, dated : [Paris, n.d., 1881-1899?], to an unidentified friend, [n.d., 1881-1899?]. (Unknown). WorldCat record id: 270873873