S. Tudisco, F. Amorini, G. Cardella, A. Di Pietro, P. Figuera, et al.. Evidence of pre-equilibrium $\gamma$-ray emission in heavy ion collisions at intermediate incident energies.
Experimental Nuclear Physics in Europe ENPE 99, Jun 1999, Sevilla, Spain. pp.323-326.
⟨in2p3-00006069⟩