| 1984 , "Some definitions of the concept of function from Bernoulli, Joh | 1976 , The Elements of Real Analysis 2nd ed |
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| Regional Input-Output Study: Recollections, Reflections, and Diverse Notes on the Philadelphia Experience | , Springer, Dordrecht, Heidelberg et cetera, 2011 |
| Methods of Regional Analysis: An Introduction to Regional Science | 1, Cambridge at the University Press, Cambridge, UK, republished as a googlebook |
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| Ernst Zermelo 1908a Investigations in the foundations of set theory I, with commentary by van Heijenoort, pages 199—215 | , online drawing program for mathematical functions |
Wherein Zermelo attempts to solve Russell's paradox by structuring his axioms to restrict the universal domain B from which objects and sets are pulled by definite properties so that it itself cannot be a set, i.
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