This heading was formerly subsumed under the subject headings: Whitechapel murders, 1888 (used from 1910-1988) and Jack the Ripper Murders, London, England, 1888 (used from 1989-1994).
Rumbelow, D. Complete Jack the Ripper, 1988 t.p. (Jack the Ripper)
Encyc. Brit. (Jack the Ripper; name given to the unknown murderer of at least seven women in London, from Aug. 7 to Nov. 10, 1888; commonly cited suspects include Montague Druitt, painter Walter Sickert, and physician Sir William Gull, among others)
Gordon, R. Michael. The American murders of Jack the Ripper, 2005 CIP t.p. (Jack the Ripper) text (said to be Severino Antoniovich Klosowski, b. Dec. 14, 1865 in Poland; executed Apr. 8, 1903)
I segreti di Londra, 2003 p. 118 (Jack lo squartatore)