| article html file updated | 8 February 2020 12:04 CET | Update | https://www.mdpi.com/2077-1444/8/8/131 |
| article html file updated | 3 May 2019 10:01 CEST | Update | - |
| article html file updated | 27 March 2019 17:47 CET | Update | - |
| article html file updated | 1 September 2017 07:37 CEST | Update | - |
| article html file updated | 26 July 2017 13:31 CEST | Original file | - |
| article xml uploaded. | 26 July 2017 13:30 CEST | Original file | https://www.mdpi.com/2077-1444/8/8/131/xml |
| article pdf uploaded. | 26 July 2017 13:30 CEST | Version of Record | https://www.mdpi.com/2077-1444/8/8/131/pdf |
