Renne, P.R., J.M. Mattinson, C.W. Hatten, M. Somin, T.C. Onstott, G. Millán, and E. Linares. 1989. “40Ar/39Ar/and/U-Pb/Evidence/for/Late/Proterozoic/(Grenville-Age)/Continental/Crust/in/North-Central/Cuba/and/Regional/Tectonic/Implications”. Precambrian Research 42: 325-41. doi:10.1016/0301-9268(89)90017-X.