| article html file updated | 8 February 2020 21:39 CET | Update | https://www.mdpi.com/2075-4434/5/4/81 |
| article html file updated | 28 September 2019 14:29 CEST | Update | N/A |
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| article html file updated | 18 April 2019 11:38 CEST | Update | N/A |
| article html file updated | 2 January 2018 17:12 CET | Update | N/A |
| article html file updated | 23 November 2017 23:30 CET | Update | N/A |
| article xml uploaded. | 23 November 2017 03:16 CET | Update | https://www.mdpi.com/2075-4434/5/4/81/xml |
| article pdf uploaded. | 23 November 2017 03:16 CET | Updated version of record | https://www.mdpi.com/2075-4434/5/4/81/pdf |
| article html file updated | 20 November 2017 09:18 CET | Original file | N/A |
| article xml uploaded. | 20 November 2017 09:17 CET | Original file | N/A |
| article pdf uploaded. | 20 November 2017 09:17 CET | Version of Record | https://www.mdpi.com/2075-4434/5/4/81/pdf-vor |
