| article html file updated | 8 February 2020 08:43 CET | Update | https://www.mdpi.com/2075-4450/8/2/63 |
| article html file updated | 25 September 2019 10:42 CEST | Update | - |
| article html file updated | 3 May 2019 16:37 CEST | Update | - |
| article html file updated | 30 June 2017 05:41 CEST | Update | - |
| article html file updated | 20 June 2017 07:57 CEST | Original file | - |
| article xml uploaded. | 20 June 2017 07:56 CEST | Original file | https://www.mdpi.com/2075-4450/8/2/63/xml |
| article pdf uploaded. | 20 June 2017 07:56 CEST | Version of Record | https://www.mdpi.com/2075-4450/8/2/63/pdf |
