@article{SMS_1969-1970__1__A9_0,
     author = {Bergman, George W.},
     title = {Skew fields of noncommutative rational functions (preliminary version)},
     journal = {S\'eminaire Sch\"utzenberger},
     note = {talk:16},
     pages = {1--18},
     publisher = {Secr\'etariat math\'ematique},
     volume = {1},
     year = {1969-1970},
     mrnumber = {280540},
     zbl = {0212.25901},
     language = {en},
     url = {http://archive.numdam.org/item/SMS_1969-1970__1__A9_0/}
}