@article{MM2_1988__62_3_155345,
     author = {Andrejs Treibergs and Hyeong In Choi},
     title = {New {Examples} of harmonic diffeomorphisms of the hyperbolic plane onto itself.},
     journal = {Manuscripta mathematica},
     pages = {249--256},
     publisher = {mathdoc},
     volume = {62},
     number = {3},
     year = {1988},
     zbl = {0669.58012},
     url = {http://geodesic.mathdoc.fr/item/MM2_1988__62_3_155345/}
}