| article html file updated | 8 February 2020 04:00 CET | Update | https://www.mdpi.com/2075-4701/7/4/147 |
| article html file updated | 24 September 2019 10:13 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:26 CEST | Update | N/A |
| article html file updated | 28 April 2017 07:02 CEST | Update | N/A |
| article html file updated | 20 April 2017 12:27 CEST | Original file | N/A |
| article xml uploaded. | 20 April 2017 12:25 CEST | Update | https://www.mdpi.com/2075-4701/7/4/147/xml |
| article pdf uploaded. | 20 April 2017 12:25 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/4/147/pdf |
