| article html file updated | 9 February 2020 18:37 CET | Update | https://www.mdpi.com/2218-273X/8/2/31 |
| article html file updated | 3 October 2019 20:37 CEST | Update | - |
| article html file updated | 30 April 2019 17:38 CEST | Update | - |
| article html file updated | 16 April 2019 18:04 CEST | Update | - |
| article html file updated | 30 March 2019 03:30 CET | Update | - |
| article html file updated | 22 May 2018 14:46 CEST | Original file | - |
| article pdf uploaded. | 22 May 2018 14:45 CEST | Version of Record | https://www.mdpi.com/2218-273X/8/2/31/pdf |
| article xml uploaded. | 22 May 2018 14:45 CEST | Update | https://www.mdpi.com/2218-273X/8/2/31/xml |
| article xml file uploaded | 22 May 2018 14:45 CEST | Original file | - |
