| article html file updated | 9 February 2020 01:36 CET | Update | https://www.mdpi.com/2075-4701/8/1/19 |
| article html file updated | 29 September 2019 14:00 CEST | Update | N/A |
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| article xml uploaded. | 4 January 2018 09:45 CET | Update | https://www.mdpi.com/2075-4701/8/1/19/xml |
| article pdf uploaded. | 4 January 2018 09:45 CET | Updated version of record | https://www.mdpi.com/2075-4701/8/1/19/pdf |
| article html file updated | 30 December 2017 13:52 CET | Original file | N/A |
| article xml uploaded. | 30 December 2017 13:51 CET | Update | N/A |
| article xml uploaded. | 30 December 2017 13:51 CET | Original file | N/A |
| article pdf uploaded. | 30 December 2017 13:51 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/19/pdf-vor |