| article html file updated | 9 February 2020 06:36 CET | Update | https://www.mdpi.com/2079-6412/8/2/73 |
| article html file updated | 30 September 2019 19:09 CEST | Update | - |
| article html file updated | 1 May 2019 18:31 CEST | Update | - |
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| article html file updated | 28 March 2019 23:15 CET | Update | - |
| article html file updated | 14 March 2018 08:52 CET | Update | - |
| article html file updated | 22 February 2018 07:52 CET | Original file | - |
| article xml uploaded. | 22 February 2018 07:50 CET | Original file | https://www.mdpi.com/2079-6412/8/2/73/xml |
| article pdf uploaded. | 22 February 2018 07:50 CET | Updated version of record | https://www.mdpi.com/2079-6412/8/2/73/pdf |
| article pdf uploaded. | 13 February 2018 19:07 CET | Version of Record | https://www.mdpi.com/2079-6412/8/2/73/pdf-vor |
