| article html file updated | 7 February 2020 23:03 CET | Update | https://www.mdpi.com/1996-1073/10/2/198 |
| article html file updated | 23 September 2019 06:04 CEST | Update | - |
| article html file updated | 4 May 2019 11:56 CEST | Update | - |
| article html file updated | 28 February 2017 10:32 CET | Update | - |
| article html file updated | 14 February 2017 03:09 CET | Original file | - |
| article xml uploaded. | 14 February 2017 03:08 CET | Original file | https://www.mdpi.com/1996-1073/10/2/198/xml |
| article pdf uploaded. | 14 February 2017 03:08 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/2/198/pdf |
| article pdf uploaded. | 10 February 2017 07:26 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/198/pdf-vor |
