| article html file updated | 9 February 2020 00:22 CET | Update | https://www.mdpi.com/1996-1073/10/12/2156 |
| article html file updated | 29 September 2019 06:53 CEST | Update | N/A |
| article html file updated | 2 May 2019 07:57 CEST | Update | N/A |
| article html file updated | 18 April 2019 05:46 CEST | Update | N/A |
| article html file updated | 2 January 2018 20:08 CET | Update | N/A |
| article html file updated | 17 December 2017 09:43 CET | Original file | N/A |
| article xml uploaded. | 17 December 2017 09:42 CET | Update | https://www.mdpi.com/1996-1073/10/12/2156/xml |
| article xml uploaded. | 17 December 2017 09:42 CET | Update | N/A |
| article xml uploaded. | 17 December 2017 09:42 CET | Original file | N/A |
| article pdf uploaded. | 17 December 2017 09:42 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/2156/pdf |
