| article html file updated | 6 February 2020 14:53 CET | Update | https://www.mdpi.com/2075-4450/6/1/77 |
| article html file updated | 20 September 2019 16:34 CEST | Update | - |
| article html file updated | 7 May 2019 03:04 CEST | Update | - |
| article html file updated | 25 March 2019 19:59 CET | Update | - |
| article html file updated | 21 August 2015 05:09 CEST | Update | - |
| article html file updated | 31 March 2015 12:40 CEST | Original file | - |
| article xml file uploaded | 31 March 2015 12:40 CEST | Original file | https://www.mdpi.com/2075-4450/6/1/77/xml |
| article pdf uploaded. | 31 December 2014 11:19 CET | Version of Record | https://www.mdpi.com/2075-4450/6/1/77/pdf |
