| article html file updated | 8 February 2020 22:12 CET | Update | https://www.mdpi.com/2077-1444/8/12/258 |
| article html file updated | 2 May 2019 12:46 CEST | Update | N/A |
| article html file updated | 18 April 2019 10:23 CEST | Update | N/A |
| article html file updated | 2 January 2018 15:39 CET | Update | N/A |
| article html file updated | 24 November 2017 15:47 CET | Original file | N/A |
| article xml uploaded. | 24 November 2017 15:46 CET | Original file | https://www.mdpi.com/2077-1444/8/12/258/xml |
| article pdf uploaded. | 24 November 2017 15:46 CET | Version of Record | https://www.mdpi.com/2077-1444/8/12/258/pdf |
