@article{MS2_1998__81_2_167439,
     author = {David Preiss and Jaroslav Tiser},
     title = {Positivity principle for more concentrated measures.},
     journal = {Mathematica Scandinavica},
     pages = {236--246},
     publisher = {mathdoc},
     volume = {81},
     number = {2},
     year = {1998},
     zbl = {0905.28007},
     url = {http://geodesic.mathdoc.fr/item/MS2_1998__81_2_167439/}
}