| article html file updated | 6 February 2020 18:21 CET | Update | https://www.mdpi.com/1996-1073/8/5/3903 |
| article html file updated | 6 May 2019 20:37 CEST | Update | - |
| article html file updated | 26 March 2019 02:00 CET | Update | - |
| article html file updated | 21 August 2015 11:40 CEST | Update | - |
| article html file updated | 26 June 2015 08:51 CEST | Original file | - |
| article xml file uploaded | 26 June 2015 08:51 CEST | Original file | https://www.mdpi.com/1996-1073/8/5/3903/xml |
| article pdf uploaded. | 13 May 2015 10:57 CEST | Updated version of record | https://www.mdpi.com/1996-1073/8/5/3903/pdf |
| article pdf uploaded. | 6 May 2015 09:42 CEST | Version of Record | https://www.mdpi.com/1996-1073/8/5/3903/pdf-vor |
