| article html file updated | 8 February 2020 20:42 CET | Update | https://www.mdpi.com/2075-4698/7/4/31 |
| article html file updated | 28 September 2019 08:18 CEST | Update | - |
| article html file updated | 2 May 2019 16:06 CEST | Update | - |
| article html file updated | 2 January 2018 14:11 CET | Update | - |
| article pdf uploaded. | 10 November 2017 05:05 CET | Updated version of record | https://www.mdpi.com/2075-4698/7/4/31/pdf |
| article html file updated | 9 November 2017 09:02 CET | Original file | - |
| article xml uploaded. | 9 November 2017 09:00 CET | Update | https://www.mdpi.com/2075-4698/7/4/31/xml |
| article xml uploaded. | 9 November 2017 09:00 CET | Original file | - |
| article pdf uploaded. | 9 November 2017 09:00 CET | Version of Record | https://www.mdpi.com/2075-4698/7/4/31/pdf-vor |
