• Methanotrophy in a Paleoproterozoic oil field ecosystem, Zaonega Formation, Karelia, RussiaQu, Y.; Črne, A. E.; Lepland, Aivo; van Zuilen, Mark A.Geobiology2012 / p. 467-478 : ill https://www.researchgate.net/publication/231177487_Methanotrophy_in_a_Paleoproterozoic_oil_field_ecosystem_Zaonega_Formation_Karelia_Russia