| article html file updated | 6 February 2020 21:15 CET | Update | https://www.mdpi.com/2227-7072/3/3/342 |
| article html file updated | 21 September 2019 01:02 CEST | Update | N/A |
| article html file updated | 6 May 2019 14:37 CEST | Update | N/A |
| article html file updated | 26 March 2019 07:44 CET | Update | N/A |
| article html file updated | 15 October 2015 07:24 CEST | Update | N/A |
| article xml file uploaded | 15 October 2015 07:24 CEST | Original file | https://www.mdpi.com/2227-7072/3/3/342/xml |
| article html file updated | 21 August 2015 15:19 CEST | Original file | N/A |
| article pdf uploaded. | 31 July 2015 08:53 CEST | Updated version of record | https://www.mdpi.com/2227-7072/3/3/342/pdf |
| article pdf uploaded. | 30 July 2015 17:08 CEST | Version of Record | https://www.mdpi.com/2227-7072/3/3/342/pdf-vor |
