Ammon, Ulrich. 1990. German as an international language. International Journal of the Sociology of Language 1990(83). 135-170. doi: 10.1515/ijsl.1990.83.135. Berlin, New York: Walter de Gruyter.
@article{427608, address = {Berlin, New York}, author = {Ammon, Ulrich}, journal = {International Journal of the Sociology of Language}, number = {83}, pages = {135-170}, publisher = {Walter de Gruyter}, title = {German as an international language}, url = {http://www.degruyter.com/view/j/ijsl.1990.issue-83/ijsl.1990.83.135/ijsl.1990.83.135.xml}, volume = {1990}, year = {1990}, doi = {10.1515/ijsl.1990.83.135}, inlg = {English [eng]}, issn = {0165-2516}, lgcode = {German [deu] (computerized assignment from "german")}, src = {degruyter} }