| article html file updated | 7 February 2020 09:33 CET | Update | https://www.mdpi.com/1999-4907/7/6/118 |
| article html file updated | 5 May 2019 14:08 CEST | Update | - |
| article html file updated | 27 March 2019 06:16 CET | Update | - |
| article html file updated | 29 June 2016 11:25 CEST | Update | - |
| article html file updated | 31 May 2016 13:15 CEST | Original file | - |
| article xml uploaded. | 31 May 2016 13:14 CEST | Original file | https://www.mdpi.com/1999-4907/7/6/118/xml |
| article pdf uploaded. | 31 May 2016 13:14 CEST | Version of Record | https://www.mdpi.com/1999-4907/7/6/118/pdf |
