| article html file updated | 6 February 2020 17:05 CET | Update | https://www.mdpi.com/2077-1444/6/2/299 |
| article html file updated | 6 May 2019 22:56 CEST | Update | - |
| article html file updated | 25 March 2019 23:45 CET | Update | - |
| article html file updated | 21 August 2015 09:33 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/2077-1444/6/2/299/xml |
| article pdf uploaded. | 4 May 2015 09:35 CEST | Updated version of record | https://www.mdpi.com/2077-1444/6/2/299/pdf |
| article pdf uploaded. | 27 March 2015 12:47 CET | Version of Record | https://www.mdpi.com/2077-1444/6/2/299/pdf-vor |
