| article html file updated | 6 February 2020 22:59 CET | Update | https://www.mdpi.com/1660-3397/13/9/5993 |
| article html file updated | 6 May 2019 10:57 CEST | Update | N/A |
| article html file updated | 26 March 2019 11:06 CET | Update | N/A |
| article html file updated | 28 September 2015 06:42 CEST | Update | N/A |
| article xml file uploaded | 28 September 2015 06:42 CEST | Update | https://www.mdpi.com/1660-3397/13/9/5993/xml |
| article html file updated | 25 September 2015 11:33 CEST | Original file | N/A |
| article xml file uploaded | 25 September 2015 11:33 CEST | Original file | N/A |
| article pdf uploaded. | 21 September 2015 09:44 CEST | Updated version of record | https://www.mdpi.com/1660-3397/13/9/5993/pdf |
| article pdf uploaded. | 18 September 2015 15:10 CEST | Version of Record | https://www.mdpi.com/1660-3397/13/9/5993/pdf-vor |
