| article html file updated | 7 February 2020 22:00 CET | Update | https://www.mdpi.com/1996-1073/10/1/138 |
| article html file updated | 23 September 2019 00:20 CEST | Update | N/A |
| article html file updated | 4 May 2019 14:01 CEST | Update | N/A |
| article html file updated | 7 February 2017 10:11 CET | Update | N/A |
| article html file updated | 22 January 2017 12:05 CET | Original file | N/A |
| article xml uploaded. | 22 January 2017 12:03 CET | Update | https://www.mdpi.com/1996-1073/10/1/138/xml |
| article xml uploaded. | 22 January 2017 12:03 CET | Original file | N/A |
| article pdf uploaded. | 22 January 2017 12:03 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/138/pdf |
