| article html file updated | 5 February 2020 12:02 CET | Update | https://www.mdpi.com/1422-8599/2003/2/M323 |
| article html file updated | 9 May 2019 11:59 CEST | Update | - |
| article html file updated | 19 March 2019 17:56 CET | Update | - |
| article html file updated | 26 September 2017 10:07 CEST | Update | - |
| article xml uploaded. | 26 September 2017 10:06 CEST | Update | https://www.mdpi.com/1422-8599/2003/2/M323/xml |
| article html file updated | 21 September 2017 10:48 CEST | Update | - |
| article xml uploaded. | 21 September 2017 10:47 CEST | Original file | - |
| article html file updated | 14 December 2016 09:02 CET | Original file | - |
