| article html file updated | 6 February 2020 14:42 CET | Update | https://www.mdpi.com/2075-4450/6/1/1 |
| article html file updated | 7 May 2019 03:28 CEST | Update | N/A |
| article html file updated | 25 March 2019 19:42 CET | Update | N/A |
| article html file updated | 21 August 2015 04:43 CEST | Update | N/A |
| article html file updated | 31 March 2015 12:40 CEST | Original file | N/A |
| article xml file uploaded | 31 March 2015 12:40 CEST | Original file | https://www.mdpi.com/2075-4450/6/1/1/xml |
| article pdf uploaded. | 23 December 2014 15:45 CET | Version of Record | https://www.mdpi.com/2075-4450/6/1/1/pdf |
