| article html file updated | 8 February 2020 08:10 CET | Update | https://www.mdpi.com/2076-0760/6/2/63 |
| article html file updated | 25 September 2019 07:44 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:41 CEST | Update | N/A |
| article html file updated | 15 June 2017 05:23 CEST | Original file | N/A |
| article xml uploaded. | 15 June 2017 05:22 CEST | Original file | https://www.mdpi.com/2076-0760/6/2/63/xml |
| article pdf uploaded. | 15 June 2017 05:22 CEST | Updated version of record | https://www.mdpi.com/2076-0760/6/2/63/pdf |
| article pdf uploaded. | 13 June 2017 14:02 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/2/63/pdf-vor |
