@article{10_4064_sm_31_2_145_151,
     author = {E. Hewitt and K. Ross},
     title = {Integrally positive-definite functions on groups},
     journal = {Studia Mathematica},
     pages = {145--151},
     publisher = {mathdoc},
     volume = {31},
     number = {2},
     year = {1968},
     doi = {10.4064/sm-31-2-145-151},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-31-2-145-151/}
}