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Energy expenditure or its analogue can be approximated by upper and lower. Maximum and Minimum Principles: A Unified Approach with Applications: 1 (Cambridge Texts in Applied Mathematics, Series Number 1) [Paperback] Sewell, M. J.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.