| article html file updated | 8 February 2020 03:02 CET | Update | https://www.mdpi.com/2075-4701/7/4/128 |
| article html file updated | 24 September 2019 04:46 CEST | Update | - |
| article html file updated | 4 May 2019 03:17 CEST | Update | - |
| article html file updated | 28 April 2017 06:56 CEST | Update | - |
| article html file updated | 6 April 2017 13:51 CEST | Original file | - |
| article xml uploaded. | 6 April 2017 13:50 CEST | Original file | https://www.mdpi.com/2075-4701/7/4/128/xml |
| article pdf uploaded. | 6 April 2017 13:50 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/4/128/pdf |
