| article html file updated | 5 February 2020 12:01 CET | Update | https://www.mdpi.com/1422-8599/2003/1/M300 |
| article html file updated | 9 May 2019 12:03 CEST | Update | - |
| article html file updated | 19 March 2019 17:53 CET | Update | - |
| article html file updated | 26 September 2017 09:44 CEST | Update | - |
| article xml uploaded. | 26 September 2017 09:43 CEST | Update | https://www.mdpi.com/1422-8599/2003/1/M300/xml |
| article html file updated | 21 September 2017 10:37 CEST | Update | - |
| article xml uploaded. | 21 September 2017 10:35 CEST | Original file | - |
| article html file updated | 14 December 2016 09:02 CET | Original file | - |
