| article html file updated | 12 February 2020 18:26 CET | Update | https://www.mdpi.com/2227-7102/9/2/127 |
| article html file updated | 4 July 2019 18:06 CEST | Update | N/A |
| article html file updated | 8 June 2019 08:55 CEST | Original file | N/A |
| article pdf uploaded. | 8 June 2019 08:54 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/127/pdf |
| article xml uploaded. | 8 June 2019 08:54 CEST | Update | https://www.mdpi.com/2227-7102/9/2/127/xml |
| article xml file uploaded | 8 June 2019 08:54 CEST | Original file | N/A |
