| article html file updated | 7 February 2020 21:57 CET | Update | https://www.mdpi.com/1996-1073/10/1/133 |
| article html file updated | 23 September 2019 00:01 CEST | Update | - |
| article html file updated | 4 May 2019 14:08 CEST | Update | - |
| article html file updated | 7 February 2017 10:10 CET | Update | - |
| article html file updated | 21 January 2017 10:34 CET | Original file | - |
| article xml uploaded. | 21 January 2017 10:33 CET | Original file | https://www.mdpi.com/1996-1073/10/1/133/xml |
| article pdf uploaded. | 21 January 2017 10:33 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/133/pdf |
