| article html file updated | 12 February 2020 21:21 CET | Update | https://www.mdpi.com/2304-8158/8/6/223 |
| article html file updated | 22 October 2019 07:24 CEST | Update | N/A |
| article html file updated | 25 June 2019 03:23 CEST | Original file | N/A |
| article pdf uploaded. | 25 June 2019 03:21 CEST | Updated version of record | https://www.mdpi.com/2304-8158/8/6/223/pdf |
| article xml uploaded. | 25 June 2019 03:21 CEST | Update | https://www.mdpi.com/2304-8158/8/6/223/xml |
| article xml file uploaded | 25 June 2019 03:21 CEST | Update | N/A |
| article pdf uploaded. | 21 June 2019 15:00 CEST | Version of Record | https://www.mdpi.com/2304-8158/8/6/223/pdf-vor |
| article xml file uploaded | 21 June 2019 15:00 CEST | Original file | N/A |
