@article{GDZPPN002065703, title = {An answer to a question by J. Milnor.}, journal = {Commentarii mathematici Helvetici}, volume = {60}, year = {1985}, pages = {173-178}, url = {http://dml.mathdoc.fr/item/GDZPPN002065703} }
Sinai, Ya. G. An answer to a question by J. Milnor.. Commentarii mathematici Helvetici, Tome 60 (1985) pp. 173-178. http://gdmltest.u-ga.fr/item/GDZPPN002065703/