TY - SER AU - Radke,M. AU - Vriend,S.P. AU - Schaefer,R.G. AU - Vriend,S.P. AU - Schaefer,R.G. TI - Geochemical characterization of lower toarcian source rocks from NW Germany: Interpretation of aromatic and saturated hydrocarbons in relation to depositional environment and maturation effects ER -