| article html file updated | 6 February 2020 23:33 CET | Update | https://www.mdpi.com/1999-4893/8/4/832 |
| article html file updated | 21 September 2019 04:28 CEST | Update | - |
| article html file updated | 6 May 2019 09:48 CEST | Update | - |
| article html file updated | 26 March 2019 12:09 CET | Update | - |
| article html file updated | 9 November 2015 10:47 CET | Original file | - |
| article xml file uploaded | 9 November 2015 10:47 CET | Original file | https://www.mdpi.com/1999-4893/8/4/832/xml |
| article pdf uploaded. | 20 October 2015 04:59 CEST | Updated version of record | https://www.mdpi.com/1999-4893/8/4/832/pdf |
| article pdf uploaded. | 19 October 2015 11:16 CEST | Updated version of record | https://www.mdpi.com/1999-4893/8/4/832/pdf-vor |
| article pdf uploaded. | 9 October 2015 12:02 CEST | Version of Record | https://www.mdpi.com/1999-4893/8/4/832/pdf-vor |
