| article html file updated | 9 February 2020 03:25 CET | Update | https://www.mdpi.com/2075-4434/6/1/12 |
| article html file updated | 30 September 2019 00:13 CEST | Update | - |
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| article xml uploaded. | 19 January 2018 09:26 CET | Update | https://www.mdpi.com/2075-4434/6/1/12/xml |
| article pdf uploaded. | 19 January 2018 09:26 CET | Updated version of record | https://www.mdpi.com/2075-4434/6/1/12/pdf |
| article html file updated | 18 January 2018 10:53 CET | Update | - |
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| article html file updated | 17 January 2018 16:35 CET | Original file | - |
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