@article{PORMA_1991__48_2_115747,
     author = {Schmidt, Klaus D. and Waldschaks, Gerd},
     title = {Common extensions of positive vector measures},
     journal = {Portugaliae mathematica},
     pages = {155--164},
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {1991},
     mrnumber = {1127118},
     zbl = {0738.28008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1991__48_2_115747/}
}