| article html file updated | 8 February 2020 02:47 CET | Update | https://www.mdpi.com/2079-6412/7/4/49 |
| article html file updated | 24 September 2019 03:17 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:52 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:43 CEST | Update | N/A |
| article html file updated | 1 April 2017 12:54 CEST | Original file | N/A |
| article xml uploaded. | 1 April 2017 12:52 CEST | Update | https://www.mdpi.com/2079-6412/7/4/49/xml |
| article pdf uploaded. | 1 April 2017 12:52 CEST | Version of Record | https://www.mdpi.com/2079-6412/7/4/49/pdf |
