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Zhao et al. 2002, Laurentia (North America and Greenland) and Baltica, pp. 145-149 Zhao, G.; Cawood, P. A.; Wilde, S. A.; Sun, M. (2002). "Review of global 2.1–1.8 Ga orogens: implications for a pre-Rodinia supercontinent". Earth-Science Reviews. 59 (1–4): 125–162. Bibcode:2002ESRv...59..125Z. doi:10.1016/S0012-8252(02)00073-9.
Eckelmann et al. 2014, Introduction, pp. 1484–1486 Eckelmann, K.; Nesbor, H. D.; Königshof, P.; Linnemann, U.; Hofmann, M.; Lange, J. M.; Sagawe, A. (2014). "Plate interactions of Laurussia and Gondwana during the formation of Pangaea—Constraints from U–Pb LA–SF–ICP–MS detrital zircon ages of Devonian and Early Carboniferous siliciclastics of the Rhenohercynian zone, Central European Variscides". Gondwana Research. 25 (4): 1484–1500. Bibcode:2014GondR..25.1484E. doi:10.1016/j.gr.2013.05.018.