| article html file updated | 5 February 2020 23:47 CET | Update | https://www.mdpi.com/1422-0067/14/1/640 |
| article html file updated | 8 May 2019 10:19 CEST | Update | N/A |
| article html file updated | 20 March 2019 16:41 CET | Update | N/A |
| article html file updated | 17 June 2015 05:12 CEST | Update | N/A |
| article html file updated | 8 February 2013 12:14 CET | Original file | N/A |
| article xml file uploaded | 8 February 2013 12:13 CET | Original file | https://www.mdpi.com/1422-0067/14/1/640/xml |
