| article html file updated | 7 February 2020 03:14 CET | Update | https://www.mdpi.com/1420-3049/21/1/70 |
| article html file updated | 6 May 2019 02:57 CEST | Update | N/A |
| article html file updated | 26 March 2019 18:03 CET | Update | N/A |
| article html file updated | 12 November 2018 04:19 CET | Original file | N/A |
| article pdf uploaded. | 8 January 2016 14:05 CET | Version of Record | https://www.mdpi.com/1420-3049/21/1/70/pdf |
| article xml uploaded. | 8 January 2016 14:05 CET | Original file | https://www.mdpi.com/1420-3049/21/1/70/xml |
