| article html file updated | 7 February 2020 06:24 CET | Update | https://www.mdpi.com/2077-1444/7/4/36 |
| article html file updated | 5 May 2019 20:27 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:19 CET | Update | N/A |
| article html file updated | 28 April 2016 12:05 CEST | Update | N/A |
| article html file updated | 25 March 2016 08:50 CET | Original file | N/A |
| article xml uploaded. | 25 March 2016 08:48 CET | Original file | https://www.mdpi.com/2077-1444/7/4/36/xml |
| article pdf uploaded. | 25 March 2016 08:48 CET | Version of Record | https://www.mdpi.com/2077-1444/7/4/36/pdf |
