@article{NUMA_1972__20_132187,
     author = {Volker Strassen},
     title = {Die {Berechnungskomplexit\"at} von elementarsymmetrischen {Funkit}},
     journal = {Numerische Mathematik},
     pages = {238--251},
     publisher = {mathdoc},
     volume = {20},
     year = {1972},
     zbl = {0251.65036},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1972__20_132187/}
}