| article html file updated | 7 February 2020 23:52 CET | Update | https://www.mdpi.com/2075-163X/7/2/30 |
| article html file updated | 23 September 2019 10:38 CEST | Update | - |
| article html file updated | 4 May 2019 10:18 CEST | Update | - |
| article html file updated | 1 March 2017 10:24 CET | Update | - |
| article html file updated | 21 February 2017 09:55 CET | Original file | - |
| article xml uploaded. | 21 February 2017 09:54 CET | Original file | https://www.mdpi.com/2075-163X/7/2/30/xml |
| article pdf uploaded. | 21 February 2017 09:54 CET | Version of Record | https://www.mdpi.com/2075-163X/7/2/30/pdf |
