| article html file updated | 10 February 2026 08:34 CET | Update | https://www.mdpi.com/2226-471X/4/2/41 |
| article html file updated | 12 February 2020 20:39 CET | Update | N/A |
| article html file updated | 19 June 2019 08:51 CEST | Original file | N/A |
| article pdf uploaded. | 19 June 2019 08:50 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/2/41/pdf |
| article xml uploaded. | 19 June 2019 08:50 CEST | Update | https://www.mdpi.com/2226-471X/4/2/41/xml |
| article xml file uploaded | 19 June 2019 08:50 CEST | Original file | N/A |
