LC database, Sept. 27, 2011 (hdg.: May, Karl Friedrich, 1842-1912; usage: Karl May)
Wikipedia (online encyclopedia), viewed on 21 October 2011 Karl May (Karl Friedrich May (25 February 1842-30 March 1912) was a popular German writer, noted mainly for adventure novels set in the American Old West. May also wrote poetry and a play, and composed music; he was proficient with several musical instruments. Many of his works were filmed, adapted for the stage, processed to audio dramas or transcribed into comics) http://en.wikipedia.org/wiki/Main_Page