with Tadeusz Januszkiewicz:
Tautological characteristic classes II: the Witt class Mathematische Annalen

with Tadeusz Januszkiewicz:
Tautological characteristic classes I ArXiv preprint.

with Tadeusz Januszkiewicz and Jozef Przytycki:
Symplectic structure on colorings, Lagrangian tangles and Tits buildings Bull. Polish Acad. Sci. Math. 68 (2020), 169--194.

Old recurrence formulae for growth series of Coxeter groups Colloq. Math. 162 (2020), no. 1, 135--141. arXiv

with Uri Bader:
Boundary unitary representations - right-angled hyperbolic buildings J. Mod. Dyn. 10 (2016), 413--437. arXiv

with Mike Davis, Tadeusz Januszkiewicz, John Meier and Boris Okun:
Compactly supported cohomology of buildings Comment. Math. Helv. 85 (2010), 551--582. arXiv

with Thomas Schick:
Buildings have finite asymptotic dimension Russian J. Math. Phys. 16 (2009), 409--412. arXiv

with Damian Osajda:
Boundaries of right-angled hyperbolic buildings Fund. Math. 197 (2007), 123--165. arXiv

with Mike Davis, Tadeusz Januszkiewicz and Boris Okun:
Cohomology of Coxeter groups with group ring coefficients: II Algebr. Geom. Topol. 6 (2006), 1289--1318. arXiv

with Mike Davis, Tadeusz Januszkiewicz and Boris Okun:
Weighted $L^2$-cohomology of Coxeter groups Geom. Topol. 11 (2007), 47--138. arXiv

Thin buildings" Geom. Topol. 10 (2006), 667--694. arXiv

L^2-cohomology of buildings with fundamental class Proc. Amer. Math. Soc. 132 (2004), no. 6, 1839--1843.

with Tadeusz Januszkiewicz:
Cohomology of buildings and of their automorphism groups Invent. Math. 150 (2002), no. 3, 579--627.

with Tadeusz Januszkiewicz:
New Kazhdan Groups Geom. Dedicata 80 (2000), no. 1-3, 311-317. arXiv

Duality for plane curves in equiaffine geometry Geom. Dedicata 79 (2000), no. 2, 189--204.