Shields et al. 2021

Shields G.A., Strachan R.A., Porter S.M., Halverson G.P., Macdonald F.A., Plumb K.A., de Alvarenga C.J., Banerjee D.M., Bekker A., Bleeker W., Brasier A., Chakraborty P.P., Collins A.S., Condie K., Das K., Evans D.A.D., Ernst R., Fallick A.E., Frimmel H., Fuck R., Hoffman P.F., Kamber B.S., Kuznetsov A.B., Mitchell R.N., Poire D.G., Poulton S.W., Riding R., Sharma M., Storey C., Stueeken E., Tostevin R., Turner E., Xiao S.H., Zhang S.H., Zhou Y., Zhu M.Y. A template for an improved rock-based subdivision of the pre-Cryogenian timescale // J. Geol. Soc. London. 2021. V. 179(1). A. jgs2020-222.