| article html file updated | 9 February 2020 06:45 CET | Update | https://www.mdpi.com/2072-6694/10/2/50 |
| article html file updated | 30 September 2019 20:00 CEST | Update | - |
| article html file updated | 1 May 2019 18:12 CEST | Update | - |
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| article html file updated | 14 March 2018 08:28 CET | Update | - |
| article html file updated | 22 February 2018 10:12 CET | Original file | - |
| article xml uploaded. | 22 February 2018 10:11 CET | Original file | https://www.mdpi.com/2072-6694/10/2/50/xml |
| article pdf uploaded. | 22 February 2018 10:11 CET | Updated version of record | https://www.mdpi.com/2072-6694/10/2/50/pdf |
| article pdf uploaded. | 15 February 2018 11:04 CET | Version of Record | https://www.mdpi.com/2072-6694/10/2/50/pdf-vor |
