| article html file updated | 6 February 2020 19:39 CET | Update | https://www.mdpi.com/2079-9276/4/2/358 |
| article html file updated | 6 May 2019 17:51 CEST | Update | - |
| article html file updated | 26 March 2019 04:41 CET | Update | - |
| article html file updated | 21 August 2015 13:35 CEST | Update | - |
| article html file updated | 30 June 2015 08:04 CEST | Original file | - |
| article xml file uploaded | 30 June 2015 08:04 CEST | Original file | https://www.mdpi.com/2079-9276/4/2/358/xml |
| article pdf uploaded. | 18 June 2015 08:19 CEST | Updated version of record | https://www.mdpi.com/2079-9276/4/2/358/pdf |
| article pdf uploaded. | 12 June 2015 13:37 CEST | Version of Record | https://www.mdpi.com/2079-9276/4/2/358/pdf-vor |
