Первая иллюстрация к книге The Magic Mirror - Bruno Ernst

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Источник: Лабиринт
Many diagrams and explanatory drawings were first published in Pythagoras, a journal for mathematics students, and we are grateful to Wolters-Noordhoff B.V., Groningen, Holland, for permission to reproduce these. We are also indebted to the Bank of the Netherlands, Amsterdam, for heir permission to reproduce the banknotes designed by Escher.