DP - MPI Library TY - JOUR AU - Goldhammer, Paul AU - Birks, J. B. T1 - Nuclear Physics UR - https://www.jstor.org/stable/1709738 T2 - Science SP - Vol. 138, No. 3541 (1962), p. 674-675 PY - 1962 N1 - Copyright: Copyright 1962 American Association for the Advancement of Science ER -