| article html file updated | 8 February 2020 02:47 CET | Update | https://www.mdpi.com/1996-1073/10/4/469 |
| article html file updated | 24 September 2019 03:21 CEST | Update | - |
| article html file updated | 4 May 2019 03:50 CEST | Update | - |
| article html file updated | 28 April 2017 06:03 CEST | Update | - |
| article html file updated | 25 April 2017 11:36 CEST | Update | - |
| article xml uploaded. | 25 April 2017 11:34 CEST | Update | https://www.mdpi.com/1996-1073/10/4/469/xml |
| article pdf uploaded. | 25 April 2017 11:34 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/4/469/pdf |
| article html file updated | 2 April 2017 08:09 CEST | Original file | - |
| article pdf uploaded. | 2 April 2017 08:08 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/469/pdf-vor |
