@article{10_4153_CMB_2012_004_8,
     author = {Pollack, Paul},
     title = {On {Mertens'} {Theorem} for {Beurling} {Primes}},
     journal = {Canadian mathematical bulletin},
     pages = {829--843},
     year = {2013},
     volume = {56},
     number = {4},
     doi = {10.4153/CMB-2012-004-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2012-004-8/}
}