| article html file updated | 5 February 2020 22:14 CET | Update | https://www.mdpi.com/2071-1050/4/10/2574 |
| article html file updated | 8 May 2019 14:12 CEST | Update | N/A |
| article html file updated | 20 March 2019 13:09 CET | Update | N/A |
| article html file updated | 25 July 2017 03:58 CEST | Update | N/A |
| article xml uploaded. | 25 July 2017 03:57 CEST | Original file | https://www.mdpi.com/2071-1050/4/10/2574/xml |
| article html file updated | 17 June 2015 02:44 CEST | Update | N/A |
| article html file updated | 7 February 2013 15:29 CET | Update | N/A |
| article html file updated | 24 January 2013 03:47 CET | Original file | N/A |
