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. 2009 May 20;9(5):3875–3890. doi: 10.3390/s90503875

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© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 6. — Functional PLC program for plane rotated about (a) south-north axis and (b) about vertical axis. Reproduced with permission from Elsevier [45].