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by Editor: Umberto Di Mario (Univ. of Rome La Sapienza, Italy ); Editor: Frida Leonetti (Univ. of Rome La Sapienza, Italy ); Editor: Giuseppe Pugliese (Univ. of Rome La Sapienza, Italy ); et al.
by Calvert, Josep Maria
by Laliberte, Richard
by Madrid, Conesa
by Ellsworth, R. N.
by George, Hillary
by Juan Francisco Cano PĂ©rez
by Unknown