| article html file updated | 9 February 2020 06:39 CET | Update | https://www.mdpi.com/2073-4425/9/2/90 |
| article html file updated | 30 September 2019 19:25 CEST | Update | - |
| article html file updated | 1 May 2019 18:24 CEST | Update | - |
| article html file updated | 17 April 2019 17:43 CEST | Update | - |
| article html file updated | 28 March 2019 23:21 CET | Update | - |
| article html file updated | 14 March 2018 17:07 CET | Update | - |
| article html file updated | 5 March 2018 04:58 CET | Update | - |
| article xml uploaded. | 5 March 2018 04:57 CET | Update | https://www.mdpi.com/2073-4425/9/2/90/xml |
| article html file updated | 22 February 2018 12:15 CET | Update | - |
| article xml uploaded. | 22 February 2018 12:14 CET | Update | - |
| article pdf uploaded. | 22 February 2018 12:14 CET | Updated version of record | https://www.mdpi.com/2073-4425/9/2/90/pdf |
| article html file updated | 14 February 2018 10:19 CET | Original file | - |
| article xml uploaded. | 14 February 2018 10:18 CET | Original file | - |
| article pdf uploaded. | 14 February 2018 10:18 CET | Version of Record | - |
