1. Fano schemes of linear spaces on hypersurfaces,

2. On twistor curves of small degree,

3. Fano 4-folds with scroll structure,

4. Adjoint linear systems on normal surfaces,

5. A note on

6. Pluricanonical systems on surfaces with small

7. Chern classes of reflexive sheaves on normal surfaces,

8. Adjoint linear systems on normal surfaces II,

9. Adjoint linear systems on normal log surfaces,

10. The Bogomolov-Miyaoka-Yau inequality for log canonical surfaces,

11. A note on Bogomolov's instability and Higgs sheaves, in Algebraic Geometry: A Volume in Memory of Paolo Francia, (eds. M. Beltrametti et al.), Walter de Gruyter, 2002, 237-256.

12. Logarithmic orbifold Euler numbers with applications,

14. Addendum to "Semistable sheaves in positive characteristic",

15. Moduli spaces of sheaves in mixed characteristic,

16. Semistable principal G-bundles in positive characteristic,

17. Moduli spaces and Castelnuovo--Mumford regularity of sheaves on surfaces,

18. Moduli spaces for principal bundles in arbitrary characteristic, with T. Gomez, A. Schmitt and I. Sols,

19. D-affinity and Frobenius morphism on quadrics,

20. Erratum to "D-affinity and Frobenius morphism on quadrics",

21. Moduli spaces of sheaves and principal G-bundles, in Algebraic Geometry: Seattle 2005, eds. D. Abramovich et al.,

22. Moduli spaces for principal bundles in large characteristic, with T. Gomez, A. Schmitt and I. Sols, in Teichmuller Theory and Moduli Problems,

23. A note on restriction theorems for semistable sheaves,

24. Moduli spaces of framed perverse instantons on P

25. On the S-fundamental group scheme,

26. On the S-fundamental group scheme II,

27. On a positive equicharacteristic variant of the p-curvature conjecture, with H. Esnault,

28. Moduli spaces of principal bundles on singular varieties,

29. Nef line bundles over finite fields,

30. On positivity and semistability of vector bundles in finite and mixed characteristics,

31. Semistable modules over Lie algebroids in positive characteristic,

32. Bogomolov's inequality for Higgs sheaves in positive characteristic,

33. Generic positivity and foliations in positive characteristic,

34. The Bogomolov-Miyaoka-Yau inequality for logarithmic surfaces in positive characteristic,

35. Rank 3 rigid representations of projective fundamental groups, with C. Simpson, 50 pages, preprint, (2016)

2. Langlands program according to Lafforgue, (in Polish),

3. Lectures on torsion-free sheaves and their moduli, "Algebraic Cycles, Sheaves, Shtukas, and Moduli", (ed. Piotr Pragacz ), in Trends in Mathematics, 2007, Birkhauser, 69-103.