@article{10_4064_aa_33_4_405_408,
     author = {Bruce Ferrero},
     title = {An explicit bound for {Iwasawa's} \ensuremath{\lambda}-invariant},
     journal = {Acta Arithmetica},
     pages = {405--408},
     publisher = {mathdoc},
     volume = {33},
     number = {4},
     year = {1977},
     doi = {10.4064/aa-33-4-405-408},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-33-4-405-408/}
}