| article html file updated | 6 February 2020 17:53 CET | Update | https://www.mdpi.com/2073-4441/7/4/1712 |
| article html file updated | 6 May 2019 21:31 CEST | Update | - |
| article html file updated | 26 March 2019 01:03 CET | Update | - |
| article html file updated | 21 August 2015 10:55 CEST | Update | - |
| article html file updated | 28 April 2015 08:10 CEST | Original file | - |
| article xml file uploaded | 28 April 2015 08:10 CEST | Original file | https://www.mdpi.com/2073-4441/7/4/1712/xml |
| article pdf uploaded. | 23 April 2015 13:13 CEST | Updated version of record | https://www.mdpi.com/2073-4441/7/4/1712/pdf |
| article pdf uploaded. | 21 April 2015 14:53 CEST | Version of Record | https://www.mdpi.com/2073-4441/7/4/1712/pdf-vor |
