| article html file updated | 7 February 2020 23:26 CET | Update | https://www.mdpi.com/2077-1444/8/2/26 |
| article html file updated | 4 May 2019 11:11 CEST | Update | - |
| article html file updated | 1 March 2017 11:11 CET | Update | - |
| article html file updated | 15 February 2017 10:01 CET | Update | - |
| article html file updated | 15 February 2017 10:01 CET | Original file | - |
| article xml uploaded. | 15 February 2017 10:00 CET | Original file | https://www.mdpi.com/2077-1444/8/2/26/xml |
| article pdf uploaded. | 15 February 2017 10:00 CET | Version of Record | https://www.mdpi.com/2077-1444/8/2/26/pdf |
