| article html file updated | 7 February 2020 04:29 CET | Update | https://www.mdpi.com/1420-3049/21/2/206 |
| article html file updated | 21 September 2019 11:12 CEST | Update | - |
| article html file updated | 6 May 2019 00:32 CEST | Update | - |
| article html file updated | 26 March 2019 20:33 CET | Update | - |
| article html file updated | 17 September 2018 03:10 CEST | Original file | - |
| article pdf uploaded. | 16 February 2016 04:05 CET | Updated version of record | https://www.mdpi.com/1420-3049/21/2/206/pdf |
| article xml uploaded. | 16 February 2016 04:05 CET | Original file | https://www.mdpi.com/1420-3049/21/2/206/xml |
| article pdf uploaded. | 8 February 2016 11:22 CET | Version of Record | https://www.mdpi.com/1420-3049/21/2/206/pdf-vor |
