Não informado. (1983). Annals of Global Analysis and Geometry. Elsevier Science Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Global Analysis and Geometry. Amsterdam: Elsevier Science Publishers, 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Global Analysis and Geometry. Elsevier Science Publishers, 1983.
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