Robuta

https://www.aanda.org/articles/aa/ref/2013/06/aa21406-13/aa21406-13.html The lithium isotopic ratio in very metal-poor stars | Astronomy & Astrophysics (A&A) isotopic ratio https://www.nist.gov/publications/resonance-ionization-mass-spectrometry-measurements-135cs137cs-isotopic-ratio Resonance Ionization Mass Spectrometry Measurements of 135Cs/137Cs Isotopic Ratio | NIST resonance ionization mass spectrometry isotopic ratio measurements https://www.aanda.org/articles/aa/abs/2013/09/aa21364-13/aa21364-13.html The CN/C15N isotopic ratio towards dark clouds | Astronomy & Astrophysics (A&A) isotopic ratio dark clouds astronomy astrophysics cn c15n https://www.aanda.org/articles/aa/full_html/2014/06/aa23947-14/aa23947-14.html Detection of chloronium and measurement of the 35Cl/37Cl isotopic ratio at z = 0.89 toward PKS... https://arxiv.org/abs/1404.7668v1 [1404.7668v1] Detection of chloronium and measurement of the 35Cl/37Cl isotopic ratio at z=0.89... Abstract page for arXiv paper 1404.7668v1: Detection of chloronium and measurement of the 35Cl/37Cl isotopic ratio at z=0.89 toward PKS1830-211 https://www.aanda.org/articles/aa/full_html/2019/09/aa35603-19/aa35603-19.html ALMA view of the 12C/13C isotopic ratio in starburst galaxies | Astronomy & Astrophysics (A&A)