Murray, John; Renard, A F (1891): Manganese deposits from the HMS Challenger stations. PANGAEA, https://doi.org/10.1594/PANGAEA.849073, Supplement to: Murray, J; Renard, AF (1891): Deep-sea deposits (based on the specimens collected during the voyage of HMS Challenger in the years 1872 to 1876). Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76; John Menzies and Co., Endinburgh, United Kingdom; orignal link http://www.vliz.be/nl/open-marien-archief?module=ref&refid=41584, 688 pp (pdf 252 Mb), hdl:10013/epic.45942.d002