| article html file updated | 7 February 2020 07:13 CET | Update | https://www.mdpi.com/1660-4601/13/4/421 |
| article html file updated | 21 September 2019 15:03 CEST | Update | N/A |
| article html file updated | 5 May 2019 18:44 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:48 CET | Update | N/A |
| article html file updated | 27 April 2016 10:12 CEST | Update | N/A |
| article html file updated | 13 April 2016 13:40 CEST | Original file | N/A |
| article xml uploaded. | 13 April 2016 13:39 CEST | Original file | https://www.mdpi.com/1660-4601/13/4/421/xml |
| article pdf uploaded. | 13 April 2016 13:39 CEST | Version of Record | https://www.mdpi.com/1660-4601/13/4/421/pdf |
