| article html file updated | 9 February 2020 08:43 CET | Update | https://www.mdpi.com/2077-1312/6/1/24 |
| article html file updated | 1 October 2019 07:21 CEST | Update | - |
| article html file updated | 1 May 2019 14:04 CEST | Update | - |
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| article html file updated | 27 March 2018 15:44 CEST | Update | - |
| article html file updated | 6 March 2018 05:01 CET | Original file | - |
| article xml uploaded. | 6 March 2018 05:00 CET | Original file | https://www.mdpi.com/2077-1312/6/1/24/xml |
| article pdf uploaded. | 6 March 2018 05:00 CET | Version of Record | https://www.mdpi.com/2077-1312/6/1/24/pdf |
