| article html file updated | 8 February 2020 03:49 CET | Update | https://www.mdpi.com/1996-1073/10/4/555 |
| article html file updated | 24 September 2019 09:10 CEST | Update | - |
| article html file updated | 4 May 2019 01:46 CEST | Update | - |
| article html file updated | 28 April 2017 06:25 CEST | Update | - |
| article html file updated | 19 April 2017 07:17 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 07:16 CEST | Update | https://www.mdpi.com/1996-1073/10/4/555/xml |
| article pdf uploaded. | 19 April 2017 07:16 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/555/pdf |
| article pdf uploaded. | 18 April 2017 14:07 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/555/pdf-vor |
