E. Gerlic, H. Langevin-Joliot, P. Roos, J. van de Wiele, J.P. Didelez, et al.. Excitation of deep lying hole states in $^{11}$C, $^{15}$O, $^{27}$Si and $^{57}$Ni with the ($^3$He, $\alpha$) reaction at 216 MeV.
Physical Review C, American Physical Society, 1975, 12, pp.2106-2110.
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