| article html file updated | 9 February 2020 04:50 CET | Update | https://www.mdpi.com/2076-3921/7/2/25 |
| article html file updated | 30 September 2019 08:25 CEST | Update | - |
| article html file updated | 1 May 2019 22:30 CEST | Update | - |
| article html file updated | 17 April 2019 21:12 CEST | Update | - |
| article html file updated | 28 March 2019 19:26 CET | Update | - |
| article html file updated | 14 March 2018 08:22 CET | Update | - |
| article html file updated | 30 January 2018 10:08 CET | Original file | - |
| article xml uploaded. | 30 January 2018 10:07 CET | Update | https://www.mdpi.com/2076-3921/7/2/25/xml |
| article xml uploaded. | 30 January 2018 10:07 CET | Original file | - |
| article pdf uploaded. | 30 January 2018 10:07 CET | Version of Record | https://www.mdpi.com/2076-3921/7/2/25/pdf |
