| article html file updated | 8 February 2020 21:02 CET | Update | https://www.mdpi.com/1999-4907/8/11/437 |
| article html file updated | 28 September 2019 10:34 CEST | Update | N/A |
| article html file updated | 2 May 2019 15:20 CEST | Update | N/A |
| article html file updated | 30 November 2017 16:07 CET | Update | N/A |
| article html file updated | 13 November 2017 11:16 CET | Original file | N/A |
| article xml uploaded. | 13 November 2017 11:15 CET | Original file | https://www.mdpi.com/1999-4907/8/11/437/xml |
| article pdf uploaded. | 13 November 2017 11:15 CET | Version of Record | https://www.mdpi.com/1999-4907/8/11/437/pdf |
