| article html file updated | 6 February 2020 22:25 CET | Update | https://www.mdpi.com/2073-4409/4/3/474 |
| article html file updated | 6 May 2019 12:07 CEST | Update | N/A |
| article html file updated | 26 March 2019 10:00 CET | Update | N/A |
| article html file updated | 27 October 2017 09:16 CEST | Update | N/A |
| article html file updated | 30 September 2015 12:00 CEST | Update | N/A |
| article xml file uploaded | 30 September 2015 12:00 CEST | Update | https://www.mdpi.com/2073-4409/4/3/474/xml |
| article html file updated | 23 September 2015 09:16 CEST | Original file | N/A |
| article xml file uploaded | 23 September 2015 09:16 CEST | Original file | N/A |
| article pdf uploaded. | 2 September 2015 17:11 CEST | Version of Record | https://www.mdpi.com/2073-4409/4/3/474/pdf |