Mappings of finite distortion: Compactness. Iwaniec, Tadeusz, Koskela, Pekka, Onninen, Jani (2002) Annales Academiae Scientiarum Fennicae. Mathematica
Mappings of finite distortion: composition operator. Hencl, Stanislav, Koskela, Pekka (2008) Annales Academiae Scientiarum Fennicae. Mathematica
Mappings of finite distortion : discreteness and openness for quasi-light mappings Stanislav Hencl, Pekka Koskela (2005) Annales de l'I.H.P. Analyse non linéaire
Mappings of finite distortion: The zero set of the Jacobian Pekka Koskela, Jan Malý (2003) Journal of the European Mathematical Society