Synthesis of isotopes of fermium with mass numbers 247 and 246 - Flerov, G. N.; Polikanov, S. M.; Mikheev, V. L.; Ilyushchenko, V. I.; Miller, M. B.; Shchegolev, V. A. (Springer, 1967)
http://dx.doi.org/10.1007/BF01175203
Keywords: ZP; U