@article{10_4064_aa150_4_4,
     author = {Soogil Seo},
     title = {On first layers of $\mathbb{Z}_p$-extensions {II}},
     journal = {Acta Arithmetica},
     pages = {385--397},
     publisher = {mathdoc},
     volume = {150},
     number = {4},
     year = {2011},
     doi = {10.4064/aa150-4-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa150-4-4/}
}