| article html file updated | 8 February 2020 07:17 CET | Update | https://www.mdpi.com/2075-5309/7/2/45 |
| article html file updated | 25 September 2019 03:16 CEST | Update | - |
| article html file updated | 3 May 2019 19:20 CEST | Update | - |
| article html file updated | 28 June 2017 12:48 CEST | Update | - |
| article html file updated | 5 June 2017 13:10 CEST | Original file | - |
| article xml uploaded. | 5 June 2017 13:09 CEST | Original file | https://www.mdpi.com/2075-5309/7/2/45/xml |
| article pdf uploaded. | 5 June 2017 13:09 CEST | Updated version of record | https://www.mdpi.com/2075-5309/7/2/45/pdf |
| article pdf uploaded. | 2 June 2017 12:13 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/2/45/pdf-vor |
