@article{10_4153_CMB_1991_064_3,
     author = {Subbarao, M. V.},
     title = {On {Sierpinski's} {Conjecture} {Concerning} the {Euler} {Totient}},
     journal = {Canadian mathematical bulletin},
     pages = {401--404},
     year = {1991},
     volume = {34},
     number = {3},
     doi = {10.4153/CMB-1991-064-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-064-3/}
}