| article html file updated | 6 February 2020 01:05 CET | Update | https://www.mdpi.com/2071-1050/5/3/1208 |
| article html file updated | 19 September 2019 18:59 CEST | Update | N/A |
| article html file updated | 8 May 2019 07:11 CEST | Update | N/A |
| article html file updated | 20 March 2019 19:59 CET | Update | N/A |
| article html file updated | 17 June 2015 07:43 CEST | Original file | N/A |
| article pdf uploaded. | 19 March 2013 11:44 CET | Version of Record | https://www.mdpi.com/2071-1050/5/3/1208/pdf |
