@article{MAN_1967__171_161564,
     author = {D. PUMPL\"UN},
     title = {Das {Tensorprodukt} als universelles {Problem.}},
     journal = {Mathematische Annalen},
     pages = {247--262},
     publisher = {mathdoc},
     volume = {171},
     year = {1967},
     zbl = {0189.01706},
     url = {http://geodesic.mathdoc.fr/item/MAN_1967__171_161564/}
}