@article{AFM_1983_8_2_a3,
     author = {Martti I. Pesonen},
     title = {Simplified proofs of some basic theorems for quasiregular mappings},
     journal = {Annales Fennici Mathematici},
     pages = {247--250},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1983},
     doi = {10.5186/aasfm.1983.0820},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1983.0820/}
}