| article html file updated | 7 February 2020 23:18 CET | Update | https://www.mdpi.com/2073-4344/7/2/58 |
| article html file updated | 23 September 2019 07:28 CEST | Update | - |
| article html file updated | 4 May 2019 11:25 CEST | Update | - |
| article html file updated | 1 March 2017 07:55 CET | Update | - |
| article html file updated | 14 February 2017 07:00 CET | Original file | - |
| article xml uploaded. | 14 February 2017 06:59 CET | Update | https://www.mdpi.com/2073-4344/7/2/58/xml |
| article xml uploaded. | 14 February 2017 06:59 CET | Original file | - |
| article pdf uploaded. | 14 February 2017 06:59 CET | Version of Record | https://www.mdpi.com/2073-4344/7/2/58/pdf |
