| article html file updated | 5 February 2020 19:09 CET | Update | https://www.mdpi.com/1422-0067/13/1/977 |
| article html file updated | 8 May 2019 20:54 CEST | Update | N/A |
| article html file updated | 25 March 2019 08:51 CET | Update | N/A |
| article html file updated | 16 June 2015 21:11 CEST | Update | N/A |
| article html file updated | 14 August 2014 12:05 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/1422-0067/13/1/977/xml |
| article html file updated | 7 February 2013 09:48 CET | Update | N/A |
| article html file updated | 7 February 2013 00:19 CET | Update | N/A |
| article html file updated | 6 February 2013 05:36 CET | Update | N/A |
| article html file updated | 29 January 2013 01:21 CET | Update | N/A |
| article html file updated | 26 January 2013 07:34 CET | Update | N/A |
| article html file updated | 23 January 2013 07:55 CET | Original file | N/A |
