| article html file updated | 8 February 2020 03:15 CET | Update | https://www.mdpi.com/1996-1073/10/4/513 |
| article html file updated | 24 September 2019 05:53 CEST | Update | - |
| article html file updated | 4 May 2019 02:51 CEST | Update | - |
| article html file updated | 28 April 2017 06:14 CEST | Update | - |
| article html file updated | 11 April 2017 06:39 CEST | Original file | - |
| article xml uploaded. | 11 April 2017 06:37 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/513/xml |
| article pdf uploaded. | 11 April 2017 06:37 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/513/pdf |
| article pdf uploaded. | 10 April 2017 11:18 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/513/pdf-vor |
