no. 2
Solution of small class number problems for cyclotomic fields
Compositio Mathematica, Tome 33 (1976) no. 2, pp. 179-186. 
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     title = {Solution of small class number problems for cyclotomic fields},
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     pages = {179--186},
     publisher = {Noordhoff International Publishing},
     volume = {33},
     number = {2},
     year = {1976},
     mrnumber = {450229},
     zbl = {0348.12011},
     language = {en},
     url = {http://www.numdam.org/item/CM_1976__33_2_179_0/}
}
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Masley, John Myron. Solution of small class number problems for cyclotomic fields. Compositio Mathematica, Tome 33 (1976) no. 2, pp. 179-186. http://www.numdam.org/item/CM_1976__33_2_179_0/

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