| article html file updated | 8 February 2020 10:21 CET | Update | https://www.mdpi.com/2073-4352/7/7/206 |
| article html file updated | 25 September 2019 19:21 CEST | Update | N/A |
| article html file updated | 3 May 2019 13:36 CEST | Update | N/A |
| article html file updated | 28 July 2017 11:23 CEST | Update | N/A |
| article html file updated | 6 July 2017 16:05 CEST | Original file | N/A |
| article xml uploaded. | 6 July 2017 16:04 CEST | Update | https://www.mdpi.com/2073-4352/7/7/206/xml |
| article pdf uploaded. | 6 July 2017 16:04 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/7/206/pdf |
