| article html file updated | 8 February 2020 02:03 CET | Update | https://www.mdpi.com/1996-1073/10/4/424 |
| article html file updated | 23 September 2019 23:17 CEST | Update | - |
| article html file updated | 4 May 2019 05:25 CEST | Update | - |
| article html file updated | 28 April 2017 05:54 CEST | Update | - |
| article html file updated | 27 March 2017 05:27 CEST | Update | - |
| article html file updated | 24 March 2017 07:35 CET | Update | - |
| article html file updated | 24 March 2017 07:19 CET | Update | - |
| article html file updated | 24 March 2017 02:33 CET | Original file | - |
| article xml uploaded. | 24 March 2017 02:31 CET | Update | https://www.mdpi.com/1996-1073/10/4/424/xml |
| article pdf uploaded. | 24 March 2017 02:31 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/4/424/pdf |
| article pdf uploaded. | 23 March 2017 15:36 CET | Version of Record | https://www.mdpi.com/1996-1073/10/4/424/pdf-vor |
