| article html file updated | 8 February 2020 06:49 CET | Update | https://www.mdpi.com/1999-4907/8/6/184 |
| article html file updated | 25 September 2019 00:59 CEST | Update | - |
| article html file updated | 3 May 2019 20:12 CEST | Update | - |
| article html file updated | 27 June 2017 11:16 CEST | Update | - |
| article html file updated | 26 May 2017 14:07 CEST | Original file | - |
| article xml uploaded. | 26 May 2017 14:06 CEST | Update | https://www.mdpi.com/1999-4907/8/6/184/xml |
| article pdf uploaded. | 26 May 2017 14:06 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/6/184/pdf |
