Kumar A., Iqbal N., Mitra S. K., Krištoufek Ladislav, Bouri E. :  Connectedness among major cryptocurrencies in standard times and during the COVID-19 outbreak , JOURNAL OF INTERNATIONAL FINANCIAL MARKETS, INSTITUTIONS AND MONEY vol.71, 101523 [2022] Download Download DOI: 10.1016/j.intfin.2022.101523