| article html file updated | 8 February 2020 02:46 CET | Update | https://www.mdpi.com/1996-1073/10/4/446 |
| article html file updated | 24 September 2019 03:11 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:54 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:59 CEST | Update | N/A |
| article html file updated | 1 April 2017 10:43 CEST | Original file | N/A |
| article xml uploaded. | 1 April 2017 10:42 CEST | Update | https://www.mdpi.com/1996-1073/10/4/446/xml |
| article pdf uploaded. | 1 April 2017 10:42 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/446/pdf |
