| article html file updated | 8 February 2020 06:14 CET | Update | https://www.mdpi.com/1999-4923/9/2/17 |
| article html file updated | 24 September 2019 21:55 CEST | Update | N/A |
| article html file updated | 3 May 2019 21:18 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:44 CEST | Update | N/A |
| article html file updated | 22 May 2017 04:52 CEST | Update | N/A |
| article html file updated | 21 May 2017 10:26 CEST | Original file | N/A |
| article xml uploaded. | 21 May 2017 10:24 CEST | Update | https://www.mdpi.com/1999-4923/9/2/17/xml |
| article pdf uploaded. | 21 May 2017 10:24 CEST | Updated version of record | https://www.mdpi.com/1999-4923/9/2/17/pdf |
| article pdf uploaded. | 19 May 2017 10:56 CEST | Version of Record | https://www.mdpi.com/1999-4923/9/2/17/pdf-vor |
