| article html file updated | 8 February 2020 23:14 CET | Update | https://www.mdpi.com/2305-6304/5/4/38 |
| article html file updated | 29 September 2019 00:19 CEST | Update | - |
| article html file updated | 2 May 2019 10:27 CEST | Update | - |
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| article html file updated | 3 January 2018 09:10 CET | Update | - |
| article html file updated | 5 December 2017 15:43 CET | Original file | - |
| article xml uploaded. | 5 December 2017 15:42 CET | Update | https://www.mdpi.com/2305-6304/5/4/38/xml |
| article xml uploaded. | 5 December 2017 15:42 CET | Original file | - |
| article pdf uploaded. | 5 December 2017 15:42 CET | Version of Record | https://www.mdpi.com/2305-6304/5/4/38/pdf |
