| article html file updated | 7 February 2020 22:09 CET | Update | https://www.mdpi.com/2073-4441/9/2/73 |
| article html file updated | 23 September 2019 01:08 CEST | Update | N/A |
| article html file updated | 4 May 2019 13:44 CEST | Update | N/A |
| article html file updated | 1 March 2017 07:49 CET | Update | N/A |
| article html file updated | 24 January 2017 11:38 CET | Original file | N/A |
| article xml uploaded. | 24 January 2017 11:37 CET | Update | https://www.mdpi.com/2073-4441/9/2/73/xml |
| article xml uploaded. | 24 January 2017 11:37 CET | Original file | N/A |
| article pdf uploaded. | 24 January 2017 11:37 CET | Version of Record | https://www.mdpi.com/2073-4441/9/2/73/pdf |
