Schäfer, Christoph (2016): Oil for Germany. Some thoughts on Roman long-distance trade. In: Ch. Schäfer (Hg.), Connecting the Ancient World. Mediterranean Shipping, Maritime Networks and their Impact, (Pharos 38). Rahden/Westf., S. 211–248.

Schä­fer, Chris­toph: Oil for Ger­ma­ny. Some thoughts on Roman long-distance tra­de. In: Schä­fer, Ch. (Hg.), Con­nec­ting the Anci­ent World. Medi­ter­ra­ne­an Ship­ping, Mar-iti­me Net­works and their Impact, (Pha­ros 38), Rahden/Westf. 2016, 211–248.