@article{MZ_1965__87_170374,
     author = {Reinhold Baer},
     title = {Endlich definierbare gruppentheoretische {Funktionen.}},
     journal = {Mathematische Zeitschrift},
     pages = {163--213},
     publisher = {mathdoc},
     volume = {87},
     year = {1965},
     zbl = {0132.01403},
     url = {http://geodesic.mathdoc.fr/item/MZ_1965__87_170374/}
}