| article html file updated | 9 February 2020 13:14 CET | Update | https://www.mdpi.com/2227-7102/8/2/49 |
| article html file updated | 1 May 2019 04:39 CEST | Update | N/A |
| article html file updated | 17 April 2019 04:55 CEST | Update | N/A |
| article html file updated | 29 March 2019 14:20 CET | Update | N/A |
| article html file updated | 27 June 2018 09:15 CEST | Update | N/A |
| article html file updated | 10 April 2018 15:05 CEST | Original file | N/A |
| article xml uploaded. | 10 April 2018 15:04 CEST | Original file | https://www.mdpi.com/2227-7102/8/2/49/xml |
| article pdf uploaded. | 10 April 2018 15:04 CEST | Version of Record | https://www.mdpi.com/2227-7102/8/2/49/pdf |
