| article html file updated | 8 February 2020 13:01 CET | Update | https://www.mdpi.com/1999-5903/9/3/44 |
| article html file updated | 26 September 2019 10:09 CEST | Update | N/A |
| article html file updated | 3 May 2019 07:58 CEST | Update | N/A |
| article html file updated | 27 March 2019 19:45 CET | Update | N/A |
| article html file updated | 30 September 2017 14:01 CEST | Update | N/A |
| article html file updated | 7 August 2017 16:00 CEST | Original file | N/A |
| article xml uploaded. | 7 August 2017 15:58 CEST | Original file | https://www.mdpi.com/1999-5903/9/3/44/xml |
| article pdf uploaded. | 7 August 2017 15:58 CEST | Version of Record | https://www.mdpi.com/1999-5903/9/3/44/pdf |
