Shahzad S. J. H., Bouri E., Roubaud D., Krištoufek Ladislav, Lucey B. :  Is Bitcoin a better safe-haven investment than gold and commodities? , International Review of Financial Analysis vol.63, 1 (2019), p. 322-330 [2019] Download Download DOI: 10.1016/j.irfa.2019.01.002