| article html file updated | 8 February 2020 03:43 CET | Update | https://www.mdpi.com/2073-4425/8/4/120 |
| article html file updated | 24 September 2019 08:32 CEST | Update | - |
| article html file updated | 4 May 2019 01:58 CEST | Update | - |
| article html file updated | 28 April 2017 06:46 CEST | Update | - |
| article html file updated | 17 April 2017 07:53 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 07:51 CEST | Original file | https://www.mdpi.com/2073-4425/8/4/120/xml |
| article pdf uploaded. | 17 April 2017 07:51 CEST | Version of Record | https://www.mdpi.com/2073-4425/8/4/120/pdf |
