@article{TM_2009_267_a10,
     author = {H. A. Hamm},
     title = {On the {Local} {Picard} {Group}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {138--145},
     publisher = {mathdoc},
     volume = {267},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM_2009_267_a10/}
}