| article html file updated | 9 February 2020 00:01 CET | Update | https://www.mdpi.com/1999-5903/9/4/95 |
| article html file updated | 2 May 2019 08:41 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:27 CEST | Update | N/A |
| article html file updated | 2 January 2018 11:21 CET | Update | N/A |
| article html file updated | 13 December 2017 15:39 CET | Original file | N/A |
| article xml uploaded. | 13 December 2017 15:38 CET | Original file | https://www.mdpi.com/1999-5903/9/4/95/xml |
| article pdf uploaded. | 13 December 2017 15:38 CET | Version of Record | https://www.mdpi.com/1999-5903/9/4/95/pdf |
