| article html file updated | 7 February 2020 20:56 CET | Update | https://www.mdpi.com/1996-1073/10/1/64 |
| article html file updated | 22 September 2019 18:39 CEST | Update | - |
| article html file updated | 4 May 2019 16:29 CEST | Update | - |
| article html file updated | 7 February 2017 09:49 CET | Update | - |
| article html file updated | 6 January 2017 12:23 CET | Original file | - |
| article xml uploaded. | 6 January 2017 12:22 CET | Original file | https://www.mdpi.com/1996-1073/10/1/64/xml |
| article pdf uploaded. | 6 January 2017 12:22 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/64/pdf |
