| article html file updated | 8 February 2020 11:59 CET | Update | https://www.mdpi.com/2077-0375/7/3/38 |
| article html file updated | 26 September 2019 04:03 CEST | Update | - |
| article html file updated | 3 May 2019 10:18 CEST | Update | - |
| article html file updated | 27 March 2019 17:39 CET | Update | - |
| article html file updated | 30 September 2017 11:33 CEST | Update | - |
| article html file updated | 26 July 2017 10:30 CEST | Original file | - |
| article xml uploaded. | 26 July 2017 10:29 CEST | Update | https://www.mdpi.com/2077-0375/7/3/38/xml |
| article pdf uploaded. | 26 July 2017 10:29 CEST | Version of Record | https://www.mdpi.com/2077-0375/7/3/38/pdf |
