Discovery of tantalum, rhenium, osmium, and iridium isotopes

@article{Robinson2012DiscoveryOT,
  title={Discovery of tantalum, rhenium, osmium, and iridium isotopes},
  author={R. Robinson and M. Thoennessen},
  journal={Atomic Data and Nuclear Data Tables},
  year={2012},
  volume={98},
  pages={911-932}
}
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