| article html file updated | 8 February 2020 07:04 CET | Update | https://www.mdpi.com/1996-1073/10/6/764 |
| article html file updated | 25 September 2019 02:14 CEST | Update | - |
| article html file updated | 3 May 2019 19:44 CEST | Update | - |
| article html file updated | 27 June 2017 10:11 CEST | Update | - |
| article html file updated | 2 June 2017 04:43 CEST | Original file | - |
| article xml uploaded. | 2 June 2017 04:37 CEST | Original file | https://www.mdpi.com/1996-1073/10/6/764/xml |
| article pdf uploaded. | 2 June 2017 04:37 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/6/764/pdf |
| article pdf uploaded. | 31 May 2017 11:17 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/6/764/pdf-vor |
