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\section*{Papers}

\subsection*{International Journals}

\item[1] ``Foundation of VMI models for ground state collective modes of double even nuclei'', J. DA PROVIDÊNCIA and J. N. URBANO, Nucl. Phys. A {\bf 182}, 174 (1972).

\item[2] ``Three-body clusters in nuclear matter'', J. DA PROVIDÊNCIA and C. M. SHAKIN, Phys. Rev. {\bf C5}, 53 (1972).

\item[3] ``Three-body clusters in nuclear matter'', J. DA PROVIDÊNCIA and C. M. SHAKIN, Phys. Rev. {\bf C6}, 1455 (1972).

\item[4] ``Collective Vibrations of Intrinsic Excited States'', M. H. Caldeira, H. Pascoal, M. C. Ruivo and E. M. Silva, Nucl. Phys.  A {\bf 197}, 265-272 (1972).

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