| article html file updated | 6 February 2020 19:59 CET | Update | https://www.mdpi.com/2075-4418/5/2/272 |
| article html file updated | 20 September 2019 23:16 CEST | Update | - |
| article html file updated | 6 May 2019 17:09 CEST | Update | - |
| article html file updated | 26 March 2019 05:17 CET | Update | - |
| article html file updated | 28 October 2015 11:04 CET | Update | - |
| article xml file uploaded | 28 October 2015 11:04 CET | Original file | https://www.mdpi.com/2075-4418/5/2/272/xml |
| article html file updated | 21 August 2015 14:02 CEST | Original file | - |
| article pdf uploaded. | 23 June 2015 15:42 CEST | Version of Record | https://www.mdpi.com/2075-4418/5/2/272/pdf |
