| article html file updated | 9 February 2020 03:41 CET | Update | https://www.mdpi.com/1996-1073/11/1/238 |
| article html file updated | 30 September 2019 01:43 CEST | Update | N/A |
| article html file updated | 2 May 2019 00:59 CEST | Update | N/A |
| article html file updated | 17 April 2019 23:21 CEST | Update | N/A |
| article html file updated | 28 March 2019 16:57 CET | Update | N/A |
| article html file updated | 1 February 2018 14:24 CET | Update | N/A |
| article html file updated | 19 January 2018 16:39 CET | Original file | N/A |
| article xml uploaded. | 19 January 2018 16:37 CET | Original file | https://www.mdpi.com/1996-1073/11/1/238/xml |
| article pdf uploaded. | 19 January 2018 16:37 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/238/pdf |