Condizione geometrica per la realiti dei punti e delle tangenti comuni a due coniche
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چکیده
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ژورنال
عنوان ژورنال: Rendiconti del Circolo Matematico di Palermo
سال: 1888
ISSN: 0009-725X,1973-4409
DOI: 10.1007/bf03018091