| article html file updated | 6 February 2020 22:16 CET | Update | https://www.mdpi.com/2225-1146/3/3/633 |
| article html file updated | 6 May 2019 12:26 CEST | Update | N/A |
| article html file updated | 26 March 2019 09:44 CET | Update | N/A |
| article html file updated | 14 March 2018 09:51 CET | Update | N/A |
| article html file updated | 23 October 2015 12:48 CEST | Original file | N/A |
| article xml file uploaded | 23 October 2015 12:48 CEST | Original file | https://www.mdpi.com/2225-1146/3/3/633/xml |
| article pdf uploaded. | 1 September 2015 05:54 CEST | Updated version of record | https://www.mdpi.com/2225-1146/3/3/633/pdf |
| article pdf uploaded. | 28 August 2015 16:32 CEST | Version of Record | https://www.mdpi.com/2225-1146/3/3/633/pdf-vor |
