| article html file updated | 8 February 2020 00:04 CET | Update | https://www.mdpi.com/2077-1444/8/3/31 |
| article html file updated | 4 May 2019 09:52 CEST | Update | - |
| article html file updated | 29 March 2017 06:00 CEST | Update | - |
| article html file updated | 23 February 2017 11:05 CET | Update | - |
| article html file updated | 23 February 2017 11:05 CET | Update | - |
| article html file updated | 23 February 2017 11:05 CET | Original file | - |
| article xml uploaded. | 23 February 2017 11:03 CET | Update | https://www.mdpi.com/2077-1444/8/3/31/xml |
| article xml uploaded. | 23 February 2017 11:03 CET | Original file | - |
| article pdf uploaded. | 23 February 2017 11:03 CET | Version of Record | https://www.mdpi.com/2077-1444/8/3/31/pdf |
