• Blocking sets in Galois planes of square order (with O. Polverino and T. Szõnyi), Acta Sci. Math. (Szeged), 65 (1999), 737--748. ps file.
• On 1-blocking sets in PG(n,q),  n>= 3 (with L. Storme), Designs, Codes and Cryptography, 21, (2000), 235--251.   ps file.
• Small Blocking sets in Higher Dimensions (with T. Szõnyi), J. Combin. Theory Ser. A,  95, (2001), 88--101. ps file
• On the spectrum of minimal blocking sets in PG(2,q) (with A. Gács and T. Szõnyi), J. of Geometry,  76 (2003), 256-281. ps file.
• On (q+t,t)-arcs of type (0,2,t) (with A. Gács), Designs, Codes and Cryptograpy,  29 (2003), 131-139. ps file.
• On sets without tangents on Galois planes of even order (with A. Blokhuis and T. Szõnyi),  Designs, Codes and Cryptography, 29 (2003), 91-98. ps file.
• On (k,p^e)-arcs in Galois planes of order p^h, Finite Fields and Appl., 10, (2004),  no. 3, 390--404. ps file.
• On large minimal blocking sets in PG(2,q) (with A. Cossidente, A. Gács, Cs. Mengyán, A. Siciliano, and T. Szõnyi), J. Combin. Des.,  13  (2005),  no. 1, 25--41. ps file.
• Small point sets of PG(n,q) intersecting each k-space in 1 modulo $\sqrt q$ points,  Innovations in Incidence Geometry,  1, (2005), 171--180. ps file.
• A t (mod p) result on weighted multiple (n-k)-blocking sets in PG(n,q) (with S. Ferret, L. Storme, and P. Sziklai),   Innovations in Incidence Geometry,  6-7, (2009), 169--188. ps file.
• On linear codes whose weights and length have a common divisor (with S. Ball, A. Blokhuis, A. Gács and P. Sziklai),   Adv. Math.,  211 (2007) 94--104. ps file.
• On stability theorems in finite geometry (with T. Szõnyi), preprint. pdf file.
• A characterization of multiple (n-k)-blocking sets in projective spaces of square order (with S. Ferret, L. Storme, and P. Sziklai), submitted.
• Small point sets of PG(n,p^{3h}) intersecting each line in 1 mod p^h points (with N.V. Harrach, K. Metsch, T. Szõnyi), submitted. pdf file.

Miscellaneous

· An introduction to finite geometry, S. Ball and Zs. Weiner, lecture note, pdf file.

· Geometric and algebraic methods in Galois geometries, (Ph.D. thesis), ELTE 2002, pdf file.

· Stabilitási tételek a véges geometriában, MTA Rényi Intézet Kombinatorika szemináriumon tartott előadás fóliái.