| article html file updated | 8 February 2020 08:08 CET | Update | https://www.mdpi.com/2076-0760/6/2/62 |
| article html file updated | 25 September 2019 07:34 CEST | Update | - |
| article html file updated | 3 May 2019 17:45 CEST | Update | - |
| article pdf uploaded. | 20 June 2017 09:57 CEST | Updated version of record | https://www.mdpi.com/2076-0760/6/2/62/pdf |
| article html file updated | 12 June 2017 15:29 CEST | Original file | - |
| article xml uploaded. | 12 June 2017 15:28 CEST | Original file | https://www.mdpi.com/2076-0760/6/2/62/xml |
| article pdf uploaded. | 12 June 2017 15:28 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/2/62/pdf-vor |
