| article html file updated | 7 February 2020 05:36 CET | Update | https://www.mdpi.com/1420-3049/21/3/298 |
| article html file updated | 21 September 2019 12:43 CEST | Update | - |
| article html file updated | 5 May 2019 22:06 CEST | Update | - |
| article html file updated | 26 March 2019 22:53 CET | Update | - |
| article html file updated | 17 September 2018 03:10 CEST | Update | - |
| article html file updated | 31 March 2016 02:50 CEST | Original file | - |
| article pdf uploaded. | 8 March 2016 11:16 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/298/pdf |
| article xml uploaded. | 8 March 2016 11:16 CET | Original file | https://www.mdpi.com/1420-3049/21/3/298/xml |
