@article{1029001883, author = {Putnam, C. R.}, title = {Rational approximation and Swiss cheeses.}, journal = {Michigan Math. J.}, volume = {24}, number = {1}, year = {1977}, pages = { 193-196}, language = {en}, url = {http://dml.mathdoc.fr/item/1029001883} }
Putnam, C. R. Rational approximation and Swiss cheeses.. Michigan Math. J., Tome 24 (1977) no. 1, pp. 193-196. http://gdmltest.u-ga.fr/item/1029001883/