@article{10_4064_sm_23_3_217_245,
     author = {K. Urbanik},
     title = {Generalized convolutions},
     journal = {Studia Mathematica},
     pages = {217--245},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1963},
     doi = {10.4064/sm-23-3-217-245},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-23-3-217-245/}
}