@article{10_2298_PIM0271003B,
     author = {Bogdan M. Baishanski},
     title = {Positivity {Zones} and {Norms} of {N-fold} {Convolutions} - {I}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {3 },
     publisher = {mathdoc},
     volume = {_N_S_71},
     number = {85},
     year = {2002},
     doi = {10.2298/PIM0271003B},
     zbl = {1052.42011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/PIM0271003B/}
}