Although the territorial revisions of 1830 greatly simplified the boundaries between Surakarta, Yogyakarta and the Dutch, Surakarta retained a large number of enclaves within Dutch territory. These were all transferred to Dutch administration in the course of the 19th century.
Houben, Vincent J. H., Kraton and Kumpeni: Surakarta and Yogyakarta, 1830-1870. Leiden: KITLV Press, 1994.
Larson, George D., Prelude to revolution: palaces and politics in Surakarta, 1912-1942. Dordrecht: Foris, 1987.