@article{MET_1990__37_3-4_176275,
     author = {S. Gabler and R. Schweigkoffer},
     title = {The {Existence} of {Sampling} {Designs} with {Preassigned} {Inclusion} {Probabilities.}},
     journal = {Metrika},
     pages = {87--96},
     publisher = {mathdoc},
     volume = {37},
     number = {3-4},
     year = {1990},
     zbl = {0695.62004},
     url = {http://geodesic.mathdoc.fr/item/MET_1990__37_3-4_176275/}
}