@article{MZ_1968__108_251825,
     author = {H. Volger},
     title = {Korrekturen zur {Arbeit:} {\"Uber} die {Existenz} von freien {Algebren.} {Math.} {Z.} 106, 312 - 320 (1968).},
     journal = {Mathematische Zeitschrift},
     pages = {388--388},
     publisher = {mathdoc},
     volume = {108},
     year = {1968},
     zbl = {0164.01202},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__108_251825/}
}