| article html file updated | 12 February 2020 17:15 CET | Update | https://www.mdpi.com/2226-471X/4/2/32 |
| article html file updated | 3 June 2019 11:06 CEST | Original file | N/A |
| article pdf uploaded. | 3 June 2019 11:05 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/2/32/pdf |
| article xml uploaded. | 3 June 2019 11:05 CEST | Update | https://www.mdpi.com/2226-471X/4/2/32/xml |
| article xml file uploaded | 3 June 2019 11:05 CEST | Original file | N/A |
