| article html file updated | 8 February 2020 03:52 CET | Update | https://www.mdpi.com/2073-4425/8/4/123 |
| article html file updated | 24 September 2019 09:28 CEST | Update | - |
| article html file updated | 4 May 2019 01:40 CEST | Update | - |
| article html file updated | 28 April 2017 06:46 CEST | Update | - |
| article html file updated | 19 April 2017 10:42 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 10:41 CEST | Original file | https://www.mdpi.com/2073-4425/8/4/123/xml |
| article pdf uploaded. | 19 April 2017 10:41 CEST | Version of Record | https://www.mdpi.com/2073-4425/8/4/123/pdf |
