| article html file updated | 6 February 2020 19:10 CET | Update | https://www.mdpi.com/2073-4352/5/2/261 |
| article html file updated | 6 May 2019 18:51 CEST | Update | - |
| article html file updated | 26 March 2019 03:44 CET | Update | - |
| article html file updated | 21 August 2015 12:49 CEST | Update | - |
| article html file updated | 8 July 2015 10:59 CEST | Original file | - |
| article xml file uploaded | 8 July 2015 10:59 CEST | Original file | https://www.mdpi.com/2073-4352/5/2/261/xml |
| article pdf uploaded. | 29 May 2015 11:21 CEST | Version of Record | https://www.mdpi.com/2073-4352/5/2/261/pdf |
