| article html file updated | 9 February 2020 02:42 CET | Update | https://www.mdpi.com/2079-9721/6/1/8 |
| article html file updated | 29 September 2019 20:03 CEST | Update | - |
| article html file updated | 2 May 2019 02:58 CEST | Update | - |
| article html file updated | 18 April 2019 01:09 CEST | Update | - |
| article html file updated | 28 March 2019 14:44 CET | Update | - |
| article html file updated | 27 March 2018 14:44 CEST | Update | - |
| article html file updated | 11 January 2018 15:54 CET | Original file | - |
| article xml uploaded. | 11 January 2018 15:52 CET | Update | https://www.mdpi.com/2079-9721/6/1/8/xml |
| article xml uploaded. | 11 January 2018 15:52 CET | Original file | - |
| article pdf uploaded. | 11 January 2018 15:52 CET | Version of Record | https://www.mdpi.com/2079-9721/6/1/8/pdf |
