@article{10_4064_sm176_1_6,
     author = {Henry Helson},
     title = {Hankel forms and sums of random variables},
     journal = {Studia Mathematica},
     pages = {85--92},
     publisher = {mathdoc},
     volume = {176},
     number = {1},
     year = {2006},
     doi = {10.4064/sm176-1-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm176-1-6/}
}