| article html file updated | 9 February 2020 09:08 CET | Update | https://www.mdpi.com/2306-5729/3/1/9 |
| article html file updated | 1 October 2019 09:45 CEST | Update | - |
| article html file updated | 1 May 2019 13:14 CEST | Update | - |
| article html file updated | 17 April 2019 12:54 CEST | Update | - |
| article html file updated | 29 March 2019 05:02 CET | Update | - |
| article html file updated | 28 March 2018 11:11 CEST | Update | - |
| article html file updated | 8 March 2018 16:44 CET | Original file | - |
| article xml uploaded. | 8 March 2018 16:43 CET | Update | https://www.mdpi.com/2306-5729/3/1/9/xml |
| article pdf uploaded. | 8 March 2018 16:43 CET | Version of Record | https://www.mdpi.com/2306-5729/3/1/9/pdf |
