--- FAIL: TestParseCase1

[sotetsuk]

The test added in #50 fails:

--- FAIL: TestParseCase1 (1.86s)
    article_test.go:50:
        title: Learning with kernels: support vector machines, regularization, optimization, and beyond
        year: 2002
        url: https://books.google.co.jp/books?hl=en&lr=&id=y8ORL3DWt4sC&oi=fnd&pg=PR13&ots=bKyS9sT8AH&sig=58efRtmGefnDgIFgIAX3ylAzShw
        cluster_id: 3391028632449519147
        # of citations:
        $ of versions:
        info id: Kw5VJJNaDy8J
        pdf link:
        pdfSource:
        ---
        title: Learning with kernels: support vector machines, regularization, optimization, and beyond
        year: 2002
        url: https://books.google.co.jp/books?hl=en&lr=&id=y8ORL3DWt4sC&oi=fnd&pg=PR13&ots=bKyS8zP5Iz&sig=dC5YzrzUAz8kjnEx392vrjb6cr0
        cluster_id: 3391028632449519147
        # of citations: 14
        $ of versions: 14
        info id: Kw5VJJNaDy8J
        pdf link: http://dip.sun.ac.za/~hanno/tw796/lesings/mlss06au_scholkopf_lk.pdf
        pdfSource: sun.ac.za