| article html file updated | 15 August 2026 00:43 CEST | Update | https://www.mdpi.com/2227-9040/6/2/18 |
| article html file updated | 9 February 2020 14:24 CET | Update | N/A |
| article html file updated | 1 May 2019 02:21 CEST | Update | N/A |
| article html file updated | 17 April 2019 02:52 CEST | Update | N/A |
| article html file updated | 29 March 2019 17:00 CET | Update | N/A |
| article html file updated | 27 June 2018 20:07 CEST | Update | N/A |
| article html file updated | 19 April 2018 09:45 CEST | Original file | N/A |
| article pdf uploaded. | 19 April 2018 09:44 CEST | Updated version of record | https://www.mdpi.com/2227-9040/6/2/18/pdf |
| article xml uploaded. | 19 April 2018 09:44 CEST | Update | https://www.mdpi.com/2227-9040/6/2/18/xml |
| article xml file uploaded | 19 April 2018 09:44 CEST | Original file | N/A |
