1. Definitions for quasiregular mappings;Martio, O.;Ann. Acad. Sci. Fenn. Ser. A I No.,1969
2. Distortion and singularities of quasiregular mappings;Martio, O.;Ann. Acad. Sci. Fenn. Ser. A I No.,1970
3. Topological and metric properties of quasiregular mappings;Martio, O.;Ann. Acad. Sci. Fenn. Ser. A. I.,1971
4. On the number of omitted values of entire quasiregular mappings;Rickman, Seppo;J. Analyse Math.,1980
5. Coefficient of injectivity for quasiregular mappings;Sarvas, Jukka;Duke Math. J.,1976