J. S. Rossier, V. Maury, B. de Voogd, and E. Pfammatter, “Use of Isotope Ratio Mass Spectrometry (IRMS) Determination (18O/16O) to Assess the Local Origin of Fish and Asparagus in Western Switzerland”, Chimia, vol. 68, no. 10, p. 696, Oct. 2014.