1. New isotopic age data on rocks from the Long Mynd, Shropshire
2. Kiryanov V. V. 1979. In Volkova, N. A., Kiryanov, V. V., Piskun, L. V., Paskeviciene, L. T. & Yankauskas, T. V., 1979. Rastitelnye mikrofossilii (Plant microfossils). In N. A. Volkova et al., Paleontologiya verkhnedokembriiskikh i kembriiskikh otlozhenii vostochno-Evropeiskoi platformy. (Upper Precambrian and Cambrian palaeontology of the east European Platform). Akademiya Nauk SSSR, Ordena Trudovogo Krasnogo Znameni Geologicheskii Institut, Izdatelstvo Nauka, Moskva, pp. 4–38. Published English translation dated 1983 by Wydawnictwa Geologiczne, Warsaw, pp. 7–47.
3. New evidence for the relative age of the Ercall Granophyre and its bearing on the Precambrian-Cambrian boundary in southern Britain
4. Zircon U-Pb ages for the Early Cambrian time-scale