@article{10_4153_CMB_2009_001_7,
     author = {Banks, W. D.},
     title = {Carmichael {Numbers} with a {Square} {Totient}},
     journal = {Canadian mathematical bulletin},
     pages = {3--8},
     year = {2009},
     volume = {52},
     number = {1},
     doi = {10.4153/CMB-2009-001-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2009-001-7/}
}