| article html file updated | 8 February 2020 00:11 CET | Update | https://www.mdpi.com/1999-4907/8/3/54 |
| article html file updated | 23 September 2019 12:25 CEST | Update | - |
| article html file updated | 4 May 2019 09:36 CEST | Update | - |
| article html file updated | 28 March 2017 03:09 CEST | Update | - |
| article html file updated | 24 February 2017 11:07 CET | Original file | - |
| article xml uploaded. | 24 February 2017 11:05 CET | Original file | https://www.mdpi.com/1999-4907/8/3/54/xml |
| article pdf uploaded. | 24 February 2017 11:05 CET | Version of Record | https://www.mdpi.com/1999-4907/8/3/54/pdf |
