| article html file updated | 7 February 2020 23:33 CET | Update | https://www.mdpi.com/1996-1073/10/2/234 |
| article html file updated | 23 September 2019 08:51 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:55 CEST | Update | N/A |
| article html file updated | 28 February 2017 10:41 CET | Update | N/A |
| article html file updated | 16 February 2017 14:51 CET | Original file | N/A |
| article xml uploaded. | 16 February 2017 14:49 CET | Original file | https://www.mdpi.com/1996-1073/10/2/234/xml |
| article pdf uploaded. | 16 February 2017 14:49 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/234/pdf |
