| article html file updated | 5 February 2020 12:01 CET | Update | https://www.mdpi.com/1422-8599/2004/1/M391 |
| article html file updated | 18 September 2019 17:28 CEST | Update | N/A |
| article html file updated | 9 May 2019 12:01 CEST | Update | N/A |
| article html file updated | 19 March 2019 17:55 CET | Update | N/A |
| article html file updated | 23 September 2017 19:07 CEST | Update | N/A |
| article xml uploaded. | 23 September 2017 19:06 CEST | Update | https://www.mdpi.com/1422-8599/2004/1/M391/xml |
| article html file updated | 22 September 2017 14:05 CEST | Update | N/A |
| article xml uploaded. | 22 September 2017 14:04 CEST | Original file | N/A |
| article html file updated | 14 December 2016 09:40 CET | Original file | N/A |
