| article html file updated | 7 February 2020 15:27 CET | Update | https://www.mdpi.com/1999-5903/8/4/46 |
| article html file updated | 5 May 2019 03:17 CEST | Update | - |
| article html file updated | 23 September 2016 09:28 CEST | Original file | - |
| article xml uploaded. | 23 September 2016 09:26 CEST | Update | https://www.mdpi.com/1999-5903/8/4/46/xml |
| article xml uploaded. | 23 September 2016 09:26 CEST | Update | - |
| article xml uploaded. | 23 September 2016 09:26 CEST | Original file | - |
| article pdf uploaded. | 23 September 2016 09:26 CEST | Version of Record | https://www.mdpi.com/1999-5903/8/4/46/pdf |
