| article html file updated | 8 February 2020 16:23 CET | Update | https://www.mdpi.com/1999-4907/8/9/349 |
| article html file updated | 27 September 2019 04:37 CEST | Update | N/A |
| article html file updated | 3 May 2019 01:37 CEST | Update | N/A |
| article html file updated | 30 September 2017 10:22 CEST | Update | N/A |
| article html file updated | 16 September 2017 11:46 CEST | Original file | N/A |
| article xml uploaded. | 16 September 2017 11:45 CEST | Original file | https://www.mdpi.com/1999-4907/8/9/349/xml |
| article pdf uploaded. | 16 September 2017 11:45 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/9/349/pdf |
