| article html file updated | 7 February 2020 06:50 CET | Update | https://www.mdpi.com/1420-3049/21/4/447 |
| article html file updated | 5 May 2019 19:33 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:03 CET | Update | N/A |
| article html file updated | 17 September 2018 03:51 CEST | Update | N/A |
| article html file updated | 28 April 2016 11:39 CEST | Update | N/A |
| article html file updated | 5 April 2016 11:58 CEST | Original file | N/A |
| article xml uploaded. | 5 April 2016 11:57 CEST | Update | https://www.mdpi.com/1420-3049/21/4/447/xml |
| article pdf uploaded. | 5 April 2016 11:57 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/4/447/pdf |