| article html file updated | 7 February 2020 07:58 CET | Update | https://www.mdpi.com/1996-1073/9/5/330 |
| article html file updated | 5 May 2019 17:12 CEST | Update | - |
| article html file updated | 27 March 2019 03:20 CET | Update | - |
| article html file updated | 26 May 2016 12:43 CEST | Update | - |
| article html file updated | 29 April 2016 10:06 CEST | Original file | - |
| article xml uploaded. | 29 April 2016 09:52 CEST | Original file | https://www.mdpi.com/1996-1073/9/5/330/xml |
| article pdf uploaded. | 29 April 2016 09:52 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/5/330/pdf |
