| article html file updated | 7 February 2020 19:01 CET | Update | https://www.mdpi.com/1420-3049/21/12/1661 |
| article html file updated | 22 September 2019 08:34 CEST | Update | N/A |
| article html file updated | 4 May 2019 20:29 CEST | Update | N/A |
| article html file updated | 17 September 2018 12:58 CEST | Update | N/A |
| article html file updated | 27 December 2016 12:03 CET | Update | N/A |
| article html file updated | 2 December 2016 12:00 CET | Original file | N/A |
| article xml uploaded. | 2 December 2016 11:58 CET | Original file | https://www.mdpi.com/1420-3049/21/12/1661/xml |
| article pdf uploaded. | 2 December 2016 11:58 CET | Version of Record | https://www.mdpi.com/1420-3049/21/12/1661/pdf |
