| article html file updated | 8 February 2020 23:21 CET | Update | https://www.mdpi.com/1660-4601/14/12/1521 |
| article html file updated | 29 September 2019 00:59 CEST | Update | N/A |
| article html file updated | 2 May 2019 10:11 CEST | Update | N/A |
| article html file updated | 18 April 2019 07:50 CEST | Update | N/A |
| article html file updated | 2 January 2018 15:03 CET | Update | N/A |
| article html file updated | 6 December 2017 14:21 CET | Original file | N/A |
| article xml uploaded. | 6 December 2017 14:19 CET | Update | https://www.mdpi.com/1660-4601/14/12/1521/xml |
| article xml uploaded. | 6 December 2017 14:19 CET | Original file | N/A |
| article pdf uploaded. | 6 December 2017 14:19 CET | Version of Record | https://www.mdpi.com/1660-4601/14/12/1521/pdf |
