| article html file updated | 8 February 2020 11:07 CET | Update | https://www.mdpi.com/2308-3425/4/3/9 |
| article html file updated | 25 September 2019 23:22 CEST | Update | - |
| article html file updated | 3 May 2019 12:09 CEST | Update | - |
| article html file updated | 27 March 2019 15:59 CET | Update | - |
| article html file updated | 17 July 2017 06:22 CEST | Update | - |
| article html file updated | 17 July 2017 06:21 CEST | Update | - |
| article html file updated | 17 July 2017 06:20 CEST | Original file | - |
| article xml uploaded. | 17 July 2017 06:19 CEST | Update | https://www.mdpi.com/2308-3425/4/3/9/xml |
| article pdf uploaded. | 17 July 2017 06:19 CEST | Updated version of record | https://www.mdpi.com/2308-3425/4/3/9/pdf |
| article pdf uploaded. | 15 July 2017 11:03 CEST | Version of Record | https://www.mdpi.com/2308-3425/4/3/9/pdf-vor |
