| article html file updated | 8 February 2020 07:26 CET | Update | https://www.mdpi.com/1996-1073/10/6/775 |
| article html file updated | 25 September 2019 03:58 CEST | Update | - |
| article html file updated | 3 May 2019 19:03 CEST | Update | - |
| article html file updated | 27 June 2017 10:13 CEST | Update | - |
| article html file updated | 23 June 2017 04:49 CEST | Original file | - |
| article xml uploaded. | 23 June 2017 04:47 CEST | Original file | https://www.mdpi.com/1996-1073/10/6/775/xml |
| article pdf uploaded. | 23 June 2017 04:47 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/6/775/pdf |
| article pdf uploaded. | 3 June 2017 12:42 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/6/775/pdf-vor |
