Additional references-Riferimenti complementari-Références complémentaires: Jefferson R. L., To Constantinople on a bicycle: The story of my ride, London, The Cycle Press, 1894. Jefferson R. L., Awheel to Moscow and back: the record of a record cycle ride, London, Sampson Low, Marston & Co., 1895. Jefferson R. Across Siberia on a bicycle, London, The Cycle Press, 1896.