| article html file updated | 7 February 2020 05:09 CET | Update | https://www.mdpi.com/1420-3049/21/3/277 |
| article html file updated | 21 September 2019 12:10 CEST | Update | - |
| article html file updated | 5 May 2019 23:00 CEST | Update | - |
| article html file updated | 26 March 2019 21:59 CET | Update | - |
| article html file updated | 17 September 2018 03:02 CEST | Update | - |
| article html file updated | 31 March 2016 02:48 CEST | Original file | - |
| article pdf uploaded. | 27 February 2016 13:07 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/277/pdf |
| article xml uploaded. | 27 February 2016 13:07 CET | Original file | https://www.mdpi.com/1420-3049/21/3/277/xml |
