| article html file updated | 7 February 2020 10:13 CET | Update | https://www.mdpi.com/1999-4907/7/6/124 |
| article html file updated | 5 May 2019 12:51 CEST | Update | - |
| article html file updated | 27 March 2019 07:35 CET | Update | - |
| article html file updated | 29 June 2016 11:34 CEST | Update | - |
| article html file updated | 15 June 2016 12:58 CEST | Original file | - |
| article xml uploaded. | 15 June 2016 12:56 CEST | Original file | https://www.mdpi.com/1999-4907/7/6/124/xml |
| article pdf uploaded. | 15 June 2016 12:56 CEST | Version of Record | https://www.mdpi.com/1999-4907/7/6/124/pdf |
