@article{10_4064_ap_33_1_57_62,
     author = {Olli Lehto},
     title = {Analytic families of quasi-conformal mappings},
     journal = {Annales Polonici Mathematici},
     pages = {57--62},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1976},
     doi = {10.4064/ap-33-1-57-62},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-33-1-57-62/}
}