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Leonardi Euleri Opera Omnia. Sub Auspiciis Societatis Scientiarum Naturalium Helveticae Edenda Curaverunt F. Rudio, A. Krazer, P. Stäckel [and Others].
出版1911
URLhttp://books.google.com.hk/books?id=9BoTMwEACAAJ&hl=&source=gbs_api