@inbook{b6bef7c625514dc98254974ec9e3180e,
title = "No polar coordinates",
keywords = "Mathematics, Wiskunde en computerwetenschappen, Landbouwwetenschappen, Natuurwetenschappen, Wiskunde: algemeen",
author = "R.H. Cushman",
year = "2005",
language = "Undefined/Unknown",
isbn = "0521539579",
series = "LMS Lecture Notes Series",
publisher = "Cambridge University Press",
number = "306",
pages = "211--302",
editor = "K. Efstathiou and D. Sadovskii",
booktitle = "Geometric Mechanics and Symmetry: the Peyresq Lectures",
address = "United Kingdom",
}