| article html file updated | 7 February 2020 21:16 CET | Update | https://www.mdpi.com/1996-1073/10/1/81 |
| article html file updated | 22 September 2019 20:17 CEST | Update | - |
| article html file updated | 4 May 2019 15:46 CEST | Update | - |
| article html file updated | 7 February 2017 09:54 CET | Update | - |
| article html file updated | 11 January 2017 16:07 CET | Original file | - |
| article xml uploaded. | 11 January 2017 16:06 CET | Update | https://www.mdpi.com/1996-1073/10/1/81/xml |
| article xml uploaded. | 11 January 2017 16:06 CET | Original file | - |
| article pdf uploaded. | 11 January 2017 16:06 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/81/pdf |
