| article html file updated | 7 February 2020 09:38 CET | Update | https://www.mdpi.com/1420-3049/21/6/720 |
| article html file updated | 21 September 2019 18:20 CEST | Update | N/A |
| article html file updated | 5 May 2019 13:56 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:27 CET | Update | N/A |
| article html file updated | 12 November 2018 04:15 CET | Update | N/A |
| article html file updated | 29 June 2016 11:55 CEST | Update | N/A |
| article html file updated | 2 June 2016 10:40 CEST | Original file | N/A |
| article xml uploaded. | 2 June 2016 10:39 CEST | Update | https://www.mdpi.com/1420-3049/21/6/720/xml |
| article pdf uploaded. | 2 June 2016 10:39 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/720/pdf |
