| article html file updated | 7 February 2020 21:12 CET | Update | https://www.mdpi.com/2079-3197/5/1/8 |
| article html file updated | 22 September 2019 19:59 CEST | Update | - |
| article html file updated | 4 May 2019 15:54 CEST | Update | - |
| article html file updated | 29 March 2017 08:46 CEST | Update | - |
| article html file updated | 11 January 2017 14:49 CET | Original file | - |
| article xml uploaded. | 11 January 2017 14:47 CET | Update | https://www.mdpi.com/2079-3197/5/1/8/xml |
| article xml uploaded. | 11 January 2017 14:47 CET | Original file | - |
| article pdf uploaded. | 11 January 2017 14:47 CET | Version of Record | https://www.mdpi.com/2079-3197/5/1/8/pdf |
