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• http://dlmf.nist.gov/about/news/#S1.I1.i1
• http://dlmf.nist.gov/about/news/#S1.I1.i2
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• http://dlmf.nist.gov/./front/foreword
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• http://dlmf.nist.gov/./25
• http://dlmf.nist.gov/./26
• http://dlmf.nist.gov/./27
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• http://dlmf.nist.gov/./29
• http://dlmf.nist.gov/./30
• http://dlmf.nist.gov/./31
• http://dlmf.nist.gov/./32
• http://dlmf.nist.gov/./33
• http://dlmf.nist.gov/./34
• http://dlmf.nist.gov/./35
• http://dlmf.nist.gov/./36
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