| article html file updated | 7 February 2020 23:27 CET | Update | https://www.mdpi.com/1996-1073/10/2/226 |
| article html file updated | 23 September 2019 08:12 CEST | Update | - |
| article html file updated | 4 May 2019 11:09 CEST | Update | - |
| article html file updated | 28 February 2017 10:39 CET | Update | - |
| article html file updated | 15 February 2017 11:44 CET | Original file | - |
| article xml uploaded. | 15 February 2017 11:43 CET | Original file | https://www.mdpi.com/1996-1073/10/2/226/xml |
| article pdf uploaded. | 15 February 2017 11:43 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/226/pdf |
