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The Gniezno Summit is written by Roman Michałowski and published by . It's available with International Standard Book Number or ISBN identification 9004305238 (ISBN 10) and 9789004305236 (ISBN 13).
In The Gniezno SummitRoman Michałowski points to the significance of the relics, kept in Gniezno, of St. Adalbert, regarded as an apostle, and to Emperor Otto III's profoundly ascetic spirituality.