On the well-posedness of a two-phase minimization problem
(with D. Vorotnikov)
J. Math. Anal. Appl. 378 (2011), 159–168.

Limits as p(x) of p(x)-harmonic functions
(with J.J. Manfredi and J.D. Rossi)
Nonlinear Anal. 72 (2010), 309–315.

p(x)-Harmonic functions with unbounded exponent in a subdomain
(with J.J. Manfredi and J.D. Rossi)
Ann. Inst. H. Poincaré Anal. Non Linéaire 26 (2009), 2581–2595.

Entropy solutions for the p(x)-Laplace equation
(with M. Sanchón)
Trans. Amer. Math. Soc. 361 (2009), 6387–6405.

On a doubly nonlinear diffusion model of chemotaxis with prevention of overcrowding
(with M. Bendahmane, R. Burger and R. Ruiz-Baier)
Math. Methods Appl. Sci. 32 (2009), 1704–1737.

The nonlinear N-membranes evolution problem
(with J.F. Rodrigues and L. Santos)
J. Math. Sci. (N. Y.) 159 (2009), 559–572.
[published in Zap. Nauchn. Sem. POMI 362 (2008), 303–324.]

The obstacle problem for nonlinear elliptic equations with variable growth and L^1-data
(with J.F. Rodrigues and M. Sanchón)
Monatsh. Math. 154 (2008), 303–322.

Quasi-steady Stokes flow of multiphase fluids with shear-dependent viscosity
(with C. Ebmeyer)
European J. Appl. Math. 18 (2007), 417–434.

On a two-sidedly degenerate chemotaxis model with volume-filling effect
(with M. Bendahmane and K.H. Karlsen)
Math. Models Methods Appl. Sci. 17 (2007), 783–804.

Intrinsic scaling for PDEs with an exponential nonlinearity
(with E. Henriques)
Indiana Univ. Math. J. 55 (2006), 1701–1722.

New global a priori estimates for the third-grade fluid equations
(with M. Steinhauer and J.H. Videman)
Math. Methods Appl. Sci. 29 (2006), 1339-1348.

Forest fire spread models: the local quasi-equilibrium approach
(with J. André and D. Xavier Viegas)
Combust. Sci. and Tech. 178 (2006), 2115-2143.

Boundary regularity at {t=0} for a singular free boundary problem
(with E. Henriques)
in: Free Boundary Problems: theory and applications, pp. 231-240, Int. Ser. Num. Math. 154, Birkhäuser, 2006.

On the doubly singular equation g(u)_t= D_pu
(with E. Henriques)
Comm. Partial Differential Equations 30 (2005), 919-955.

The smoothing property for a class of doubly nonlinear parabolic equations
(with C. Ebmeyer)
Trans. Amer. Math. Soc. 357 (2005), 3239-3253.

Current issues on singular and degenerate evolution equations
(with E. DiBenedetto and V. Vespri)
in: Handbook of Differential Equations, Evolutionary Equations, vol. 1, pp. 169-286, Elsevier, 2004.

The geometry of some nonlinear PDEs
in: The J.A. Sampaio Martins anniversary volume, pp. 121-133, Textos Mat. Sér. B 34,  DMUC, 2004.

Regularity in Sobolev spaces for doubly nonlinear parabolic equations
(with C. Ebmeyer)
J. Differential Equations 187 (2003), 375-390.

Uniqueness for nonlinear degenerate problems
(with N. Igbida)
NoDEA Nonlinear Differential Equations Appl. 10 (2003), 287-307.

Regularity for partial differential equations: from De Giorgi-Nash-Moser theory to intrinsic scaling
in: CIM Bulletin #12, pp. 8-14, June 2002.

Unidirectional steady flow of a viscoelastic fluid with a free surface
(with J.H. Videman)
Interfaces Free Bound. 3 (2001), 447-463.

A free boundary problem: contributions from modern analysis
in: European Congress of Mathematics, pp. 319-329, Progress in Mathematics 202, Birkhäuser, 2001.

Hölder continuity of local weak solutions for parabolic equations exhibiting two degeneracies
Adv. Differential Equations 6 (2001), 327-358.

Continuous solutions for a degenerate free boundary problem
Ann. Mat. Pura Appl. 178 (2000), 195-224.

A singular-degenerate parabolic problem: regularity up to the Dirichlet boundary
in: FBPs: Theory and Applications I, pp. 399-410, GAKUTO Int. Series Math. Sci. Appl. 13, 2000.

On a three-dimensional convective Stefan problem for a non-newtonian fluid
(with J.F. Rodrigues)
in: Applied Nonlinear Analysis, pp. 457-468, Kluwer Academic/Plenum Publishers, 1999.

Degenerate elliptic problems in a class of free domains
(with J.F. Rodrigues)
J. Math. Pures Appl. 78 (1999), 819-840.

On the Stefan problem with convection and nonlinear diffusion in a porous medium
in: Nonlinear Evolution Equations and Their Applications, pp. 225-236, World Scientific, 1999.

On a Darcy-Stefan problem arising in freezing and thawing of saturated porous media
(with J.F. Rodrigues)
Contin. Mech. Thermodyn. 11 (1999), 181-191.

On the mathematical analysis of a valley glacier model
(with J.F. Rodrigues)
in: FBPs: theory and applications, pp. 237-245, Res. Notes Math. 409, Chapman & Hall/CRC, 1999.

On the stationary Boussinesq-Stefan problem with constitutive power-laws
(with J.F. Rodrigues)
Internat. J. Non-Linear Mech. 33 (1998), no. 4, 555-566.

A free boundary problem with convection for the p-Laplacian
Rend. Mat. Appl. 17 (1997), 1-19.

A stationary Stefan problem with convection and nonlinear diffusion
Port. Math. 52 (1995), 481-497.

Some convergence properties of matrix sets
(with D.P. Stanford)
SIAM J. Matrix Anal. Appl. 15 (1994), 1132-1140.