Geomagnetic reversals in the Early Paleozoic: 2. A nonsynchronous record of Middle Ordovician reversals in the Berezovskaya section, Southern Siberian platform
Ag. Iosifidi et al., Geomagnetic reversals in the Early Paleozoic: 2. A nonsynchronous record of Middle Ordovician reversals in the Berezovskaya section, Southern Siberian platform, FIZIK ZEMLI, (1), 1999, pp. 28-37