Vanderauwera, J., & Andre, L. (1988). O, C and Sr Isotopes As Tracers of Metasomatic Fluids - Application To the Skarn Deposit (fe, Cu, W) of Traversella (ivrea, Italy). Chemical Geology, 70(1-2), 137. https://doi.org/10.1016/0009-2541(88)90596-7 (Original work published 1988)