| article html file updated | 6 February 2020 18:29 CET | Update | https://www.mdpi.com/2225-1146/3/2/289 |
| article html file updated | 6 May 2019 20:20 CEST | Update | - |
| article html file updated | 26 March 2019 02:17 CET | Update | - |
| article html file updated | 14 March 2018 09:34 CET | Update | - |
| article html file updated | 5 November 2015 08:20 CET | Original file | - |
| article xml file uploaded | 5 November 2015 08:20 CET | Original file | https://www.mdpi.com/2225-1146/3/2/289/xml |
| article pdf uploaded. | 18 May 2015 16:32 CEST | Updated version of record | https://www.mdpi.com/2225-1146/3/2/289/pdf |
| article pdf uploaded. | 11 May 2015 11:13 CEST | Version of Record | https://www.mdpi.com/2225-1146/3/2/289/pdf-vor |
