| article html file updated | 7 February 2020 21:09 CET | Update | https://www.mdpi.com/1996-1073/10/1/74 |
| article html file updated | 22 September 2019 19:50 CEST | Update | N/A |
| article html file updated | 4 May 2019 16:00 CEST | Update | N/A |
| article html file updated | 7 February 2017 09:52 CET | Update | N/A |
| article html file updated | 10 January 2017 13:39 CET | Original file | N/A |
| article xml uploaded. | 10 January 2017 13:38 CET | Original file | https://www.mdpi.com/1996-1073/10/1/74/xml |
| article pdf uploaded. | 10 January 2017 13:38 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/74/pdf |
