Alpha-activity of209Bi

@article{Carvalho1972AlphaactivityO,
  title={Alpha-activity of209Bi},
  author={H. G. Carvalho and M. Penna},
  journal={Lettere al Nuovo Cimento (1971-1985)},
  year={1972},
  volume={3},
  pages={720-722}
}