Abstract
Asking questions so far has been rather a slow process. If you want to find out who lives on the surface for example, you have to work through each individual name until you strike lucky, or simply list the relation. There is however a quicker method. This is to use what are called variables. You have probably already come across variables in Maths.
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© 1985 Serafim Gascoigne
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Gascoigne, S. (1985). The Nurks Strike Back!. In: The Purple Planet. Palgrave, London. https://doi.org/10.1007/978-1-349-07860-8_2
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DOI: https://doi.org/10.1007/978-1-349-07860-8_2
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-07862-2
Online ISBN: 978-1-349-07860-8
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