| article html file updated | 5 February 2020 17:01 CET | Update | https://www.mdpi.com/2079-6374/1/2/46 |
| article html file updated | 9 May 2019 01:20 CEST | Update | N/A |
| article html file updated | 20 March 2019 06:54 CET | Update | N/A |
| article html file updated | 16 June 2015 15:27 CEST | Update | N/A |
| article html file updated | 21 July 2014 03:32 CEST | Original file | N/A |
| article xml file uploaded | 21 July 2014 03:32 CEST | Original file | https://www.mdpi.com/2079-6374/1/2/46/xml |
