| article html file updated | 6 February 2020 19:39 CET | Update | https://www.mdpi.com/2075-4434/3/2/103 |
| article html file updated | 20 September 2019 22:47 CEST | Update | - |
| article html file updated | 6 May 2019 17:50 CEST | Update | - |
| article html file updated | 26 March 2019 04:42 CET | Update | - |
| article html file updated | 9 November 2015 10:47 CET | Original file | - |
| article xml file uploaded | 9 November 2015 10:47 CET | Original file | https://www.mdpi.com/2075-4434/3/2/103/xml |
| article pdf uploaded. | 12 June 2015 14:17 CEST | Version of Record | https://www.mdpi.com/2075-4434/3/2/103/pdf |
