| article html file updated | 7 February 2020 10:25 CET | Update | https://www.mdpi.com/1420-3049/21/6/771 |
| article html file updated | 21 September 2019 19:20 CEST | Update | N/A |
| article html file updated | 5 May 2019 12:29 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:55 CET | Update | N/A |
| article html file updated | 12 November 2018 04:29 CET | Update | N/A |
| article html file updated | 29 June 2016 12:01 CEST | Update | N/A |
| article html file updated | 20 June 2016 15:40 CEST | Original file | N/A |
| article xml uploaded. | 20 June 2016 15:38 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/771/xml |
| article pdf uploaded. | 20 June 2016 15:38 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/771/pdf |
