found:Annual report of the Board of Regents of the Smithsonian Institution, showing the operations, expenditures, and condition of the institution to July, 1889:p. 325 (A. Blytt)
found:OCLC, Sept. 25, 2009(hdg.: Blytt, Axel Gudbrand, 1843-1898; usage: A. Blytt, Axel Blytt)