| article html file updated | 7 February 2020 20:52 CET | Update | https://www.mdpi.com/2072-4292/9/1/40 |
| article html file updated | 22 September 2019 18:17 CEST | Update | - |
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| article html file updated | 8 February 2017 10:24 CET | Update | - |
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| article xml uploaded. | 5 January 2017 12:24 CET | Original file | https://www.mdpi.com/2072-4292/9/1/40/xml |
| article pdf uploaded. | 5 January 2017 12:24 CET | Version of Record | https://www.mdpi.com/2072-4292/9/1/40/pdf |
