| article html file updated | 7 February 2020 01:50 CET | Update | https://www.mdpi.com/1422-8599/2015/4/M880 |
| article html file updated | 21 September 2019 07:20 CEST | Update | N/A |
| article html file updated | 6 May 2019 05:47 CEST | Update | N/A |
| article html file updated | 26 March 2019 15:52 CET | Update | N/A |
| article html file updated | 27 October 2017 08:20 CEST | Update | N/A |
| article html file updated | 22 September 2017 09:13 CEST | Update | N/A |
| article xml uploaded. | 22 September 2017 09:12 CEST | Original file | https://www.mdpi.com/1422-8599/2015/4/M880/xml |
| article html file updated | 24 November 2016 22:44 CET | Original file | N/A |
| article pdf uploaded. | 4 December 2015 15:58 CET | Version of Record | https://www.mdpi.com/1422-8599/2015/4/M880/pdf |
