with Tadeusz Januszkiewicz:
 
 Tautological characteristic classes III: the Witt class for PSL(2)
  
with Tadeusz Januszkiewicz:
 Tautological characteristic classes II: the Witt class
  
Math. Ann. 390 (2024), no. 3, 4463--4496.
with Tadeusz Januszkiewicz:
 Tautological characteristic classes, I
Algebr. Geom. Topol. 24 (2024), no. 5, 2889--2932.
 arXiv
  
with Tadeusz Januszkiewicz and Jozef Przytycki:
 Symplectic structure on colorings, Lagrangian tangles and Tits buildings
  
Bull. Polish Acad. Sci. Math. 68 (2020), no. 2, 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.