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  1. By: Haglund, C. J. Emil (Carl Johan Emil),
    Type: Article
    In: Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar
    Volume: 56
    Date: 1899
    Page Range: 49--71
    Publication Info: Stockholm P. A. Norstedt & Söner
  2. By: Haglund, C. J. Emil (Carl Johan Emil),
    Type: Article
    In: Entomologische Zeitung
    Volume: 29
    Date: 1868
    Page Range: 150--163
    Publication Info: [Stettin Entomologischer Verein zu Stettin 1840-1911]