| article html file updated | 7 February 2020 21:21 CET | Update | https://www.mdpi.com/2073-4352/7/1/22 |
| article html file updated | 22 September 2019 20:42 CEST | Update | N/A |
| article html file updated | 4 May 2019 15:34 CEST | Update | N/A |
| article html file updated | 7 February 2017 04:12 CET | Update | N/A |
| article html file updated | 12 January 2017 13:24 CET | Original file | N/A |
| article xml uploaded. | 12 January 2017 13:23 CET | Original file | https://www.mdpi.com/2073-4352/7/1/22/xml |
| article pdf uploaded. | 12 January 2017 13:23 CET | Version of Record | https://www.mdpi.com/2073-4352/7/1/22/pdf |
