| article html file updated | 6 February 2020 07:18 CET | Update | https://www.mdpi.com/2076-393X/2/1/129 |
| article html file updated | 20 September 2019 05:55 CEST | Update | - |
| article html file updated | 7 May 2019 18:34 CEST | Update | - |
| article html file updated | 21 March 2019 12:25 CET | Update | - |
| article html file updated | 19 August 2015 20:34 CEST | Update | - |
| article html file updated | 14 January 2015 05:17 CET | Original file | - |
| article xml file uploaded | 14 January 2015 05:17 CET | Original file | https://www.mdpi.com/2076-393X/2/1/129/xml |
| article pdf uploaded. | 18 February 2014 09:05 CET | Version of Record | https://www.mdpi.com/2076-393X/2/1/129/pdf |
