| article html file updated | 8 February 2020 04:50 CET | Update | https://www.mdpi.com/2075-4450/8/2/47 |
| article html file updated | 24 September 2019 14:36 CEST | Update | - |
| article html file updated | 3 May 2019 23:55 CEST | Update | - |
| article html file updated | 30 June 2017 05:43 CEST | Update | - |
| article html file updated | 23 May 2017 03:29 CEST | Update | - |
| article html file updated | 1 May 2017 12:19 CEST | Original file | - |
| article xml uploaded. | 1 May 2017 12:17 CEST | Original file | https://www.mdpi.com/2075-4450/8/2/47/xml |
| article pdf uploaded. | 1 May 2017 12:17 CEST | Updated version of record | https://www.mdpi.com/2075-4450/8/2/47/pdf |
