| article html file updated | 8 February 2020 02:39 CET | Update | https://www.mdpi.com/1999-5903/9/2/10 |
| article html file updated | 24 September 2019 02:31 CEST | Update | - |
| article html file updated | 4 May 2019 04:10 CEST | Update | - |
| article html file updated | 30 June 2017 22:24 CEST | Update | - |
| article html file updated | 31 March 2017 11:39 CEST | Original file | - |
| article xml uploaded. | 31 March 2017 11:38 CEST | Original file | https://www.mdpi.com/1999-5903/9/2/10/xml |
| article pdf uploaded. | 31 March 2017 11:38 CEST | Version of Record | https://www.mdpi.com/1999-5903/9/2/10/pdf |
