| article html file updated | 5 February 2020 18:06 CET | Update | https://www.mdpi.com/2076-2615/1/3/306 |
| article html file updated | 8 January 2020 14:36 CET | Update | - |
| article html file updated | 19 September 2019 05:57 CEST | Update | - |
| article html file updated | 8 May 2019 23:10 CEST | Update | - |
| article html file updated | 20 March 2019 09:32 CET | Update | - |
| article html file updated | 29 June 2015 04:16 CEST | Update | - |
| article xml file uploaded | 29 June 2015 04:16 CEST | Original file | https://www.mdpi.com/2076-2615/1/3/306/xml |
| article html file updated | 16 June 2015 18:16 CEST | Update | - |
| article html file updated | 6 February 2013 22:35 CET | Update | - |
| article html file updated | 6 February 2013 02:21 CET | Update | - |
| article html file updated | 28 January 2013 23:43 CET | Update | - |
| article html file updated | 26 January 2013 04:56 CET | Update | - |
| article html file updated | 22 January 2013 21:57 CET | Original file | - |
