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@article{MS2_1982__51_166803, author = {Olga Macedonska-Nosalska}, title = {On infinite {Nielsen} transformations.}, journal = {Mathematica Scandinavica}, pages = {63--86}, publisher = {mathdoc}, volume = {51}, year = {1982}, zbl = {0494.20010}, url = {http://geodesic.mathdoc.fr/item/MS2_1982__51_166803/} }
Olga Macedonska-Nosalska. On infinite Nielsen transformations.. Mathematica Scandinavica, Tome 51 (1982), pp. 63-86. http://geodesic.mathdoc.fr/item/MS2_1982__51_166803/