| article html file updated | 7 February 2020 11:50 CET | Update | https://www.mdpi.com/1999-4923/8/3/22 |
| article html file updated | 5 May 2019 09:54 CEST | Update | N/A |
| article html file updated | 27 March 2019 10:33 CET | Update | N/A |
| article html file updated | 28 September 2016 12:01 CEST | Original file | N/A |
| article xml uploaded. | 18 July 2016 08:29 CEST | Original file | https://www.mdpi.com/1999-4923/8/3/22/xml |
| article pdf uploaded. | 18 July 2016 08:29 CEST | Version of Record | https://www.mdpi.com/1999-4923/8/3/22/pdf |
