@inproceedings{1015816,
    title = "Origin and nature of early Pythaogrean cosmogony",
    author = "Πιερρής, Απόστολος Λ.",
    year = "1992",
    pages = "126-162",
    publisher = "Διεθνές Κέντρον Ελληνικής Φιλοσοφίας και Πολιτισμού",
    booktitle = "Pythagorean philosophy"
}