Caffe, P. J.; Trumbull, R. B.; Siebel, W. (2012): Petrology of the Coyaguayma ignimbrite, northern Puna of Argentina: Origin and evolution of a peraluminous high-SiO2 rhyolite magma. Lithos, 134-135, 179-200.
Keiding, J. K.; Frei, O.; Renno, A.; Veksler, I. V.; Trumbull, R. B. (2012): Magma storage and evolution in the Henties Bay-Outjo dyke swarm, Namibia-feeder systems of the Etendeka lavas. General Assembly European Geosciences Union (Vienna, Austria 2012).