| article html file updated | 6 February 2020 03:39 CET | Update | https://www.mdpi.com/2076-3425/3/3/1229 |
| article html file updated | 8 May 2019 02:01 CEST | Update | N/A |
| article html file updated | 21 March 2019 02:34 CET | Update | N/A |
| article html file updated | 17 June 2015 12:05 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/2076-3425/3/3/1229/xml |
| article pdf uploaded. | 7 August 2013 11:12 CEST | Version of Record | https://www.mdpi.com/2076-3425/3/3/1229/pdf |
