| article html file updated | 9 February 2020 04:14 CET | Update | https://www.mdpi.com/1996-1073/11/2/286 |
| article html file updated | 30 September 2019 04:52 CEST | Update | - |
| article html file updated | 1 May 2019 23:47 CEST | Update | - |
| article html file updated | 17 April 2019 22:19 CEST | Update | - |
| article html file updated | 28 March 2019 18:08 CET | Update | - |
| article html file updated | 14 March 2018 15:27 CET | Update | - |
| article html file updated | 1 February 2018 02:53 CET | Original file | - |
| article xml uploaded. | 1 February 2018 02:52 CET | Original file | https://www.mdpi.com/1996-1073/11/2/286/xml |
| article pdf uploaded. | 1 February 2018 02:51 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/2/286/pdf |
| article pdf uploaded. | 24 January 2018 16:50 CET | Version of Record | - |
