@article{10_4064_sm215_2_5,
     author = {Octavio Arizmendi and Takahiro Hasebe},
     title = {Semigroups related to additive and multiplicative, free and {Boolean} convolutions},
     journal = {Studia Mathematica},
     pages = {157--185},
     publisher = {mathdoc},
     volume = {215},
     number = {2},
     year = {2013},
     doi = {10.4064/sm215-2-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm215-2-5/}
}