| article html file updated | 6 February 2020 03:48 CET | Update | https://www.mdpi.com/1999-4893/6/3/485 |
| article html file updated | 20 September 2019 00:02 CEST | Update | N/A |
| article html file updated | 8 May 2019 01:41 CEST | Update | N/A |
| article html file updated | 21 March 2019 03:02 CET | Update | N/A |
| article html file updated | 21 July 2017 04:09 CEST | Update | N/A |
| article html file updated | 21 July 2017 04:07 CEST | Update | N/A |
| article html file updated | 21 July 2017 04:07 CEST | Original file | N/A |
| article xml uploaded. | 21 July 2017 04:06 CEST | Original file | https://www.mdpi.com/1999-4893/6/3/485/xml |
| article pdf uploaded. | 15 August 2013 11:35 CEST | Version of Record | https://www.mdpi.com/1999-4893/6/3/485/pdf |