000 00399nam a2200145 a 4500
008 170703s1964#### ||||f#|||||00| 0#uuu#d
003 AR-SmCIES
091 _a12142
100 1 _aBeckurts, Karl Heinrich
245 1 0 _aNeutron physics.
260 _a[s.l.] :
_b[s.n.],
_c1964.
650 4 _aNEUTRONES
999 _c22148
_d22148