| article html file updated | 8 February 2020 22:01 CET | Update | https://www.mdpi.com/1996-1073/10/12/1939 |
| article html file updated | 28 September 2019 16:54 CEST | Update | N/A |
| article html file updated | 2 May 2019 13:08 CEST | Update | N/A |
| article html file updated | 18 April 2019 10:47 CEST | Update | N/A |
| article html file updated | 2 January 2018 17:59 CET | Update | N/A |
| article html file updated | 24 November 2017 11:34 CET | Original file | N/A |
| article xml uploaded. | 24 November 2017 11:33 CET | Original file | https://www.mdpi.com/1996-1073/10/12/1939/xml |
| article pdf uploaded. | 24 November 2017 11:33 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/12/1939/pdf |
| article pdf uploaded. | 23 November 2017 15:26 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/1939/pdf-vor |
