(q2+q+1)-caps of class [0, 1, 2, 3, q+1]2 and type (1, m, n)4 of PG(5, q) are quadric Veroneseans. - Mauro Zannetti (Discret. Math., 2004)

Note on three-character (q+1)-sets in PG(3, q). - Mauro Zannetti; Fulvio Zuanni (Australas. J Comb., 2010)

A Characterization of the planes secant to a non-singular quadric in PG(4, q). - Stefano Innamorati; Mauro Zannetti (Ars Comb., 2011)

A characterization of the external lines of a hyperoval cone in PG(3, q), q even. - Mauro Zannetti (Discret. Math., 2011)

A characterization of the lines external to a hyperbolic quadric in PG(3, q). - Stefano Innamorati; Mauro Zannetti; Fulvio Zuanni (Ars Comb., 2012)

A combinatorial characterization of the Hermitian surface. - Stefano Innamorati; Mauro Zannetti; Fulvio Zuanni (Discret. Math., 2013)

21=9+12: PG(2, 4)=AG(2, 3)+DAG (2, 3). - Chiara Mancini; Mauro Zannetti (Ars Comb., 2017)