| article html file updated | 11 February 2020 05:45 CET | Update | https://www.mdpi.com/2073-4409/8/1/13 |
| article html file updated | 27 April 2019 13:31 CEST | Update | - |
| article html file updated | 13 April 2019 09:29 CEST | Update | - |
| article html file updated | 2 April 2019 19:54 CEST | Update | - |
| article html file updated | 30 January 2019 03:38 CET | Update | - |
| article html file updated | 30 December 2018 02:08 CET | Original file | - |
| article pdf uploaded. | 29 December 2018 04:07 CET | Version of Record | https://www.mdpi.com/2073-4409/8/1/13/pdf |
| article xml uploaded. | 29 December 2018 04:07 CET | Update | https://www.mdpi.com/2073-4409/8/1/13/xml |
| article xml file uploaded | 29 December 2018 04:07 CET | Original file | - |
