| article html file updated | 7 February 2020 18:33 CET | Update | https://www.mdpi.com/1999-4907/7/12/293 |
| article html file updated | 4 May 2019 21:27 CEST | Update | - |
| article html file updated | 27 December 2016 11:25 CET | Update | - |
| article html file updated | 7 December 2016 11:23 CET | Update | - |
| article xml uploaded. | 7 December 2016 11:22 CET | Update | https://www.mdpi.com/1999-4907/7/12/293/xml |
| article pdf uploaded. | 7 December 2016 11:22 CET | Updated version of record | https://www.mdpi.com/1999-4907/7/12/293/pdf |
| article html file updated | 24 November 2016 13:54 CET | Original file | - |
| article xml uploaded. | 24 November 2016 13:53 CET | Original file | - |
| article pdf uploaded. | 24 November 2016 13:53 CET | Version of Record | https://www.mdpi.com/1999-4907/7/12/293/pdf-vor |
