| article html file updated | 8 February 2020 02:51 CET | Update | https://www.mdpi.com/2075-5309/7/2/32 |
| article html file updated | 24 September 2019 03:44 CEST | Update | - |
| article html file updated | 4 May 2019 03:42 CEST | Update | - |
| article html file updated | 28 June 2017 12:45 CEST | Update | - |
| article html file updated | 6 April 2017 11:19 CEST | Original file | - |
| article xml uploaded. | 6 April 2017 11:18 CEST | Update | https://www.mdpi.com/2075-5309/7/2/32/xml |
| article pdf uploaded. | 6 April 2017 11:18 CEST | Updated version of record | https://www.mdpi.com/2075-5309/7/2/32/pdf |
| article pdf uploaded. | 4 April 2017 09:37 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/2/32/pdf-vor |
