| article html file updated | 6 February 2020 19:01 CET | Update | https://www.mdpi.com/2076-0817/4/2/335 |
| article html file updated | 6 May 2019 19:10 CEST | Update | N/A |
| article html file updated | 26 March 2019 03:28 CET | Update | N/A |
| article html file updated | 8 September 2015 06:05 CEST | Update | N/A |
| article xml file uploaded | 8 September 2015 06:05 CEST | Update | https://www.mdpi.com/2076-0817/4/2/335/xml |
| article html file updated | 21 August 2015 12:38 CEST | Update | N/A |
| article html file updated | 7 July 2015 10:59 CEST | Original file | N/A |
| article xml file uploaded | 7 July 2015 10:59 CEST | Original file | N/A |
| article pdf uploaded. | 26 May 2015 14:51 CEST | Version of Record | https://www.mdpi.com/2076-0817/4/2/335/pdf |
