| article html file updated | 7 February 2020 21:12 CET | Update | https://www.mdpi.com/2073-4352/7/1/20 |
| article html file updated | 4 May 2019 15:53 CEST | Update | N/A |
| article html file updated | 7 February 2017 04:11 CET | Update | N/A |
| article html file updated | 25 January 2017 05:18 CET | Update | N/A |
| article xml uploaded. | 25 January 2017 05:17 CET | Update | https://www.mdpi.com/2073-4352/7/1/20/xml |
| article pdf uploaded. | 25 January 2017 05:17 CET | Updated version of record | https://www.mdpi.com/2073-4352/7/1/20/pdf |
| article html file updated | 11 January 2017 13:24 CET | Original file | N/A |
| article xml uploaded. | 11 January 2017 13:23 CET | Original file | N/A |
| article pdf uploaded. | 11 January 2017 13:23 CET | Version of Record | https://www.mdpi.com/2073-4352/7/1/20/pdf-vor |
