nobélium
1968 / Elements Beyond 100, Present Status and Future Prospects / Glenn T. Seaborg / Annual Review of Nuclear and Particle Science 18 (1968) p. 53 [doi]
1999 / [Search and Discovery] Nobelium-254 Forms High-Spin Rotational States / Gloria B. Lubkin / Physics Today 52 (1999) p. 21 [doi]