| article html file updated | 7 February 2020 15:05 CET | Update | https://www.mdpi.com/2075-5309/6/3/39 |
| article html file updated | 5 May 2019 03:54 CEST | Update | - |
| article html file updated | 27 September 2016 12:08 CEST | Update | - |
| article html file updated | 16 September 2016 09:30 CEST | Original file | - |
| article xml uploaded. | 16 September 2016 09:28 CEST | Update | https://www.mdpi.com/2075-5309/6/3/39/xml |
| article xml uploaded. | 16 September 2016 09:28 CEST | Original file | - |
| article pdf uploaded. | 16 September 2016 09:28 CEST | Version of Record | https://www.mdpi.com/2075-5309/6/3/39/pdf |
