| article html file updated | 6 February 2020 06:30 CET | Update | https://www.mdpi.com/1660-3397/12/1/98 |
| article html file updated | 7 May 2019 20:15 CEST | Update | - |
| article html file updated | 21 March 2019 10:22 CET | Update | - |
| article html file updated | 19 August 2015 16:06 CEST | Update | - |
| article html file updated | 17 February 2014 12:17 CET | Original file | - |
| article xml file uploaded | 17 February 2014 12:17 CET | Original file | https://www.mdpi.com/1660-3397/12/1/98/xml |
| article pdf uploaded. | 31 December 2013 12:05 CET | Version of Record | https://www.mdpi.com/1660-3397/12/1/98/pdf |
