Abaimova 1983. [Conodonts and other problematic remains of Middle-Upper Cambrian of Malij Karatau.] Apollonov, M.K.; Bandaletov, S.M.; Ivshin, N.K.[Eds]. The Lower Palaeozoic stratigraphy and palaeontology of Kazakhstan., Nauka, Leningrad, 1983: 1-176. Chapter pagination: 96-104