| article html file updated | 11 February 2020 11:47 CET | Update | https://www.mdpi.com/2075-4701/9/2/137 |
| article html file updated | 27 April 2019 00:57 CEST | Update | - |
| article html file updated | 12 April 2019 20:54 CEST | Update | - |
| article html file updated | 3 April 2019 10:11 CEST | Update | - |
| article html file updated | 27 January 2019 05:42 CET | Original file | - |
| article pdf uploaded. | 27 January 2019 05:40 CET | Version of Record | https://www.mdpi.com/2075-4701/9/2/137/pdf |
| article xml uploaded. | 27 January 2019 05:40 CET | Update | https://www.mdpi.com/2075-4701/9/2/137/xml |
| article xml file uploaded | 27 January 2019 05:40 CET | Original file | - |
