| article html file updated | 6 February 2020 14:24 CET | Update | https://www.mdpi.com/1420-3049/19/12/20768 |
| article html file updated | 20 September 2019 15:55 CEST | Update | N/A |
| article html file updated | 7 May 2019 04:05 CEST | Update | N/A |
| article html file updated | 25 March 2019 19:09 CET | Update | N/A |
| article html file updated | 14 September 2018 09:45 CEST | Update | N/A |
| article html file updated | 21 August 2015 04:01 CEST | Update | N/A |
| article html file updated | 4 January 2015 11:50 CET | Original file | N/A |
| article xml file uploaded | 4 January 2015 11:50 CET | Original file | https://www.mdpi.com/1420-3049/19/12/20768/xml |
| article pdf uploaded. | 12 December 2014 09:35 CET | Version of Record | https://www.mdpi.com/1420-3049/19/12/20768/pdf |
