| article html file updated | 6 February 2020 18:56 CET | Update | https://www.mdpi.com/2079-3197/3/2/235 |
| article html file updated | 6 May 2019 19:24 CEST | Update | N/A |
| article html file updated | 26 March 2019 03:17 CET | Update | N/A |
| article html file updated | 21 August 2015 12:33 CEST | Update | N/A |
| article html file updated | 9 July 2015 12:31 CEST | Original file | N/A |
| article xml file uploaded | 9 July 2015 12:31 CEST | Original file | https://www.mdpi.com/2079-3197/3/2/235/xml |
| article pdf uploaded. | 22 May 2015 15:19 CEST | Version of Record | https://www.mdpi.com/2079-3197/3/2/235/pdf |
