Joseph Conrad (2015). “The Complete Works of Joseph Conrad: 20 Novels & 26 Short Stories (Including Memoirs, Essays & Letters in One Single Edition): Classics of World Literature from One of the Greatest English Novelists: Heart of Darkness, The Duel, Lord Jim, The Secret Agent, Nostromo, The Shadow-Line & Under Western Eyes”, p.1055, e-artnow
"'Twilight' tuesday: Anna Kendrick says it was 'easy to get googly eyed' at Robert Pattinson". Interview with Larry Carroll, www.mtv.com. October 21, 2008.
"Über das Unendliche" ["On the Infinite"] (1925) address to der Westfälischen Mathematischen Gesellschaft in honour to the memory of Karl Weierstrass, as quoted in "Number The Language of Science" by Tobias Dantzig, 1930.
"Über das Unendliche" ["On the Infinite"] (1925) address to der Westfälischen Mathematischen Gesellschaft in honour to the memory of Karl Weierstrass, as quoted in "Number The Language of Science" by Tobias Dantzig, 1930.