| article html file updated | 6 February 2020 21:01 CET | Update | https://www.mdpi.com/2079-4983/6/3/623 |
| article html file updated | 21 September 2019 00:46 CEST | Update | N/A |
| article html file updated | 6 May 2019 15:03 CEST | Update | N/A |
| article html file updated | 26 March 2019 07:19 CET | Update | N/A |
| article html file updated | 11 December 2018 09:35 CET | Update | N/A |
| article html file updated | 11 December 2018 09:15 CET | Update | N/A |
| article html file updated | 11 December 2018 09:06 CET | Update | N/A |
| article html file updated | 9 October 2015 11:46 CEST | Update | N/A |
| article xml file uploaded | 9 October 2015 11:46 CEST | Update | https://www.mdpi.com/2079-4983/6/3/623/xml |
| article html file updated | 22 September 2015 12:00 CEST | Original file | N/A |
| article xml file uploaded | 22 September 2015 12:00 CEST | Original file | N/A |
| article pdf uploaded. | 24 July 2015 11:58 CEST | Version of Record | https://www.mdpi.com/2079-4983/6/3/623/pdf |