| article html file updated | 6 February 2020 04:12 CET | Update | https://www.mdpi.com/2076-3425/3/3/1325 |
| article html file updated | 8 May 2019 00:49 CEST | Update | N/A |
| article html file updated | 21 March 2019 04:09 CET | Update | N/A |
| article html file updated | 17 June 2015 12:56 CEST | Update | N/A |
| article html file updated | 20 May 2014 08:39 CEST | Original file | N/A |
| article xml file uploaded | 20 May 2014 08:39 CEST | Original file | https://www.mdpi.com/2076-3425/3/3/1325/xml |
| article pdf uploaded. | 5 September 2013 09:54 CEST | Version of Record | https://www.mdpi.com/2076-3425/3/3/1325/pdf |
