| article html file updated | 8 February 2020 11:22 CET | Update | https://www.mdpi.com/1999-5903/9/3/37 |
| article html file updated | 26 September 2019 00:36 CEST | Update | N/A |
| article html file updated | 3 May 2019 11:40 CEST | Update | N/A |
| article html file updated | 27 March 2019 16:28 CET | Update | N/A |
| article html file updated | 30 September 2017 14:00 CEST | Update | N/A |
| article html file updated | 18 July 2017 15:25 CEST | Update | N/A |
| article html file updated | 18 July 2017 15:24 CEST | Update | N/A |
| article html file updated | 18 July 2017 15:24 CEST | Original file | N/A |
| article xml uploaded. | 18 July 2017 15:23 CEST | Update | https://www.mdpi.com/1999-5903/9/3/37/xml |
| article pdf uploaded. | 18 July 2017 15:23 CEST | Version of Record | https://www.mdpi.com/1999-5903/9/3/37/pdf |