| article html file updated | 24 December 2025 14:05 CET | Update | https://www.mdpi.com/2218-1997/3/4/79 |
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| article xml uploaded. | 17 November 2017 02:00 CET | Update | https://www.mdpi.com/2218-1997/3/4/79/xml |
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| article pdf uploaded. | 17 November 2017 02:00 CET | Updated version of record | https://www.mdpi.com/2218-1997/3/4/79/pdf |
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| article html file updated | 14 November 2017 11:18 CET | Original file | N/A |
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| article pdf uploaded. | 14 November 2017 11:17 CET | Version of Record | https://www.mdpi.com/2218-1997/3/4/79/pdf-vor |
