@article{MZ_1971__120_171527,
     author = {Manfred Wolff},
     title = {Vektorwertige invariante {Ma{\ss}e} von rechtsamenablen {Halbgruppen} positiver {Operatoren.}},
     journal = {Mathematische Zeitschrift},
     pages = {265--276},
     publisher = {mathdoc},
     volume = {120},
     year = {1971},
     zbl = {0202.14203},
     url = {http://geodesic.mathdoc.fr/item/MZ_1971__120_171527/}
}