| article html file updated | 7 February 2020 23:26 CET | Update | https://www.mdpi.com/2072-6643/9/2/142 |
| article html file updated | 23 September 2019 08:07 CEST | Update | - |
| article html file updated | 4 May 2019 11:11 CEST | Update | - |
| article html file updated | 2 March 2017 03:51 CET | Update | - |
| article html file updated | 15 February 2017 10:07 CET | Original file | - |
| article xml uploaded. | 15 February 2017 10:05 CET | Original file | https://www.mdpi.com/2072-6643/9/2/142/xml |
| article pdf uploaded. | 15 February 2017 10:05 CET | Version of Record | https://www.mdpi.com/2072-6643/9/2/142/pdf |
