| article html file updated | 9 February 2020 02:20 CET | Update | https://www.mdpi.com/2075-4701/8/1/38 |
| article html file updated | 29 September 2019 18:05 CEST | Update | - |
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| article html file updated | 9 February 2018 11:00 CET | Update | - |
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| article html file updated | 8 January 2018 15:01 CET | Original file | - |
| article xml uploaded. | 8 January 2018 15:00 CET | Original file | https://www.mdpi.com/2075-4701/8/1/38/xml |
| article pdf uploaded. | 8 January 2018 15:00 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/38/pdf |
