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Supported in part by Waseda University Grant for Special Research Projects 95A-286 and by the Grant-in-Aid for Encouragement of Young Scientists (No. 08740039), The Ministry of Education, Science, Sports and Culture, Japan.
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Ozaki, M., Taya, H. On the Iwasawa λ2-invariants of certain families of real quadratic fields. Manuscripta Math 94, 437–444 (1997). https://doi.org/10.1007/BF02677865
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DOI: https://doi.org/10.1007/BF02677865