| article html file updated | 8 February 2020 15:30 CET | Update | https://www.mdpi.com/2220-9964/6/9/281 |
| article html file updated | 26 September 2019 23:47 CEST | Update | - |
| article html file updated | 3 May 2019 03:15 CEST | Update | - |
| article html file updated | 26 September 2017 12:50 CEST | Update | - |
| article html file updated | 8 September 2017 05:49 CEST | Update | - |
| article xml uploaded. | 8 September 2017 05:48 CEST | Update | https://www.mdpi.com/2220-9964/6/9/281/xml |
| article xml uploaded. | 8 September 2017 05:48 CEST | Update | - |
| article pdf uploaded. | 8 September 2017 05:48 CEST | Updated version of record | https://www.mdpi.com/2220-9964/6/9/281/pdf |
| article html file updated | 6 September 2017 14:59 CEST | Original file | - |
| article xml uploaded. | 6 September 2017 14:58 CEST | Update | - |
| article xml uploaded. | 6 September 2017 14:58 CEST | Original file | - |
| article pdf uploaded. | 6 September 2017 14:58 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/9/281/pdf-vor |
