| article html file updated | 7 February 2020 08:34 CET | Update | https://www.mdpi.com/1996-1073/9/5/356 |
| article html file updated | 5 May 2019 16:02 CEST | Update | - |
| article html file updated | 27 March 2019 04:28 CET | Update | - |
| article html file updated | 26 May 2016 12:58 CEST | Update | - |
| article html file updated | 12 May 2016 11:20 CEST | Original file | - |
| article xml uploaded. | 12 May 2016 11:18 CEST | Update | https://www.mdpi.com/1996-1073/9/5/356/xml |
| article pdf uploaded. | 12 May 2016 11:18 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/5/356/pdf |
