| article html file updated | 7 February 2020 12:10 CET | Update | https://www.mdpi.com/1999-5903/8/3/34 |
| article html file updated | 5 May 2019 09:18 CEST | Update | - |
| article html file updated | 27 March 2019 11:10 CET | Update | - |
| article html file updated | 22 July 2016 11:31 CEST | Original file | - |
| article xml uploaded. | 22 July 2016 11:29 CEST | Original file | https://www.mdpi.com/1999-5903/8/3/34/xml |
| article pdf uploaded. | 22 July 2016 11:29 CEST | Version of Record | https://www.mdpi.com/1999-5903/8/3/34/pdf |
