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"Moon in a Puddle and the Four-Vertex Theorem."
Anton Petrunin, Sergio Zamora Barrera, Ana Cristina Chávez Cáliz (2022)
- Anton Petrunin
, Sergio Zamora Barrera, Ana Cristina Chávez Cáliz:
Moon in a Puddle and the Four-Vertex Theorem. Am. Math. Mon. 129(5): 475-479 (2022)
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