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Kenig, F.; Simons, D.-J.H.; Crich, D.; Cowen, J.P.; Ventura, G.T.; Rehbein-Khalily, T., Structure and distribution of branched aliphatic alkanes with quaternary carbon atoms in Cenomanian and Turonian black shales of Pasquia Hills (Saskatchewan, Canada), Org. Geochem., 2005, 36, 1, 117-138, https://doi.org/10.1016/j.orggeochem.2004.06.014 . [all data]