@article{10_4153_CMB_2010_081_0,
     author = {Bakonyi, M. and Timotin, D.},
     title = {Extensions of {Positive} {Definite} {Functions} on {Amenable} {Groups}},
     journal = {Canadian mathematical bulletin},
     pages = {3--11},
     year = {2011},
     volume = {54},
     number = {1},
     doi = {10.4153/CMB-2010-081-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2010-081-0/}
}