Bain, Mervyn J. (November 2005). "Cuba-Soviet Relations in the Gorbachev Era". Journal of Latin American Studies. 37 (4): 786. doi:10.1017/s0022216x05009867. S2CID145545339.
Bain, Mervyn J. (November 2005). "Cuba-Soviet Relations in the Gorbachev Era". Journal of Latin American Studies. 37 (4): 786. doi:10.1017/s0022216x05009867. S2CID145545339.